{"id":735,"date":"2026-11-08T23:03:29","date_gmt":"2026-11-08T15:03:29","guid":{"rendered":"https:\/\/siliconcarbide.net\/?p=735"},"modified":"2026-11-08T23:03:29","modified_gmt":"2026-11-08T15:03:29","slug":"rekrystalizovany-karbid-kremika-pre-pecnu-vybavu","status":"publish","type":"post","link":"https:\/\/siliconcarbide.net\/sk\/recrystallized-silicon-carbide-for-kiln-furniture\/","title":{"rendered":"Rekry\u0161talizovan\u00fd karbid krem\u00edka pre pecn\u00fa v\u00fdbavu"},"content":{"rendered":"

Rekry\u0161talizovan\u00fd karbid krem\u00edka (RSiC \/ RSC) \u2014 pre pecn\u00fa v\u00fdbavu, trysky hor\u00e1kov a vysokoteplotn\u00e9 kon\u0161truk\u010dn\u00e9 diely<\/span><\/h1>\n

Ak sa teplota vo va\u0161om peci pohybuje nad 1450 \u00b0C, proces zah\u0155\u0148a r\u00fdchle zahrievanie\/ochladzovanie a ak by sa sp\u00e9kacia pr\u00edsada alebo f\u00e1za s vo\u013en\u00fdm krem\u00edkom stala slab\u00fdm \u010dl\u00e1nkom \u2013 toto je str\u00e1nka o materi\u00e1loch, ktor\u00fa by ste si mali pre\u010d\u00edta\u0165 predt\u00fdm, ako ur\u010d\u00edte \u0161pecifik\u00e1cie.<\/span><\/strong> RSiC nie je \u201c\u010fal\u0161\u00ed typ SiC\u201d. Je to typ, ktor\u00fd si vyberiete, ke\u010f <\/span>odolnos\u0165 vo\u010di teplotn\u00fdm \u0161okom a chemick\u00e1 \u010distota s\u00fa d\u00f4le\u017eitej\u0161ie ako maxim\u00e1lna hustota<\/span><\/strong>.<\/span><\/p>\n

Ten jedin\u00fd rozdiel, ktor\u00fd ovplyv\u0148uje ka\u017ed\u00e9 \u010fal\u0161ie rozhodnutie<\/span><\/h2>\n

Na v\u00e4\u010d\u0161ine str\u00e1nok dod\u00e1vate\u013eov s\u00fa uveden\u00e9 \u00fadaje o hustote, p\u00f3rovitosti a pevnosti RSiC, a t\u00fdm to kon\u010d\u00ed. Tieto inform\u00e1cie s\u00fa s\u00edce potrebn\u00e9, ale nesta\u010dia. Ot\u00e1zka, ktor\u00e1 je k\u013e\u00fa\u010dov\u00e1 pre rozhodnutie, znie: <\/span>Pre\u010do by si niekto z\u00e1merne vybral karbid krem\u00edka s otvorenou p\u00f3rovitos\u0165ou 10\u201320% namiesto hust\u00e9ho SSiC, ktor\u00fd v technickom liste vyzer\u00e1 lep\u0161ie?<\/span><\/strong><\/p>\n

Odpove\u010f spo\u010d\u00edva v mikrostrukt\u00fare. RSiC sa vyr\u00e1ba spekan\u00edm vysoko\u010dist\u00e9ho pr\u00e1\u0161ku SiC pri teplote pribli\u017ene 2200\u20132450 \u00b0C <\/span>bez adit\u00edv na spekanie<\/span><\/strong>. Zrnk\u00e1 karbidu krem\u00edka rast\u00fa prostredn\u00edctvom mechanizmu odparovania a kondenz\u00e1cie, pri\u010dom medzi zrnkami vznikaj\u00fa priame kr\u010dkov\u00e9 v\u00e4zby. Materi\u00e1l sa po\u010das vypa\u013eovania zmr\u0161\u0165uje len ve\u013emi m\u00e1lo a priestor, ktor\u00fd by v pr\u00edpade hust\u00e9ho SiC vyplnili spekacie pr\u00edsady alebo vo\u013en\u00fd krem\u00edk, zost\u00e1va ako <\/span>prepojen\u00e1, otvoren\u00e1 p\u00f3rovitos\u0165<\/span><\/strong>. T\u00e1to por\u00e9znos\u0165 nie je v\u00fdrobnou vadou. Ide o funk\u010dn\u00fa vlastnos\u0165, ktor\u00e1 zais\u0165uje RSiC odolnos\u0165 vo\u010di tepeln\u00fdm \u0161okom a chemick\u00fa inertnos\u0165.<\/span><\/p>\n

Toto je rozhoduj\u00face krit\u00e9rium, ktor\u00e9 odli\u0161uje kupuj\u00faceho, ktor\u00fd rozumie triedam SiC, od toho, kto porovn\u00e1va iba st\u013apec s hustotou.<\/span><\/p>\n

RSiC vs. SSiC vs. SiSiC\/RBSiC: porovn\u00e1vacia tabu\u013eka, ktor\u00fa v\u00e4\u010d\u0161ina dod\u00e1vate\u013eov neuv\u00e1dza na str\u00e1nkach svojich produktov<\/span><\/h2>\n
\n
\n
\n
 <\/div>\n<\/div>\n
 <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n
Polo\u017eka<\/span><\/th>\nRSiC (rekristalizovan\u00fd)<\/span><\/strong><\/th>\nSSiC (spe\u010den\u00fd bez tlaku)<\/span><\/strong><\/th>\nSiSiC \/ RBSiC (reak\u010dne viazan\u00e9)<\/span><\/strong><\/th>\n<\/tr>\n<\/thead>\n
\u010cistota SiC<\/span><\/strong><\/td>\n\u226599%, <\/span>bez sp\u00e1jkovacieho prostriedku<\/span><\/strong><\/td>\nZvy\u010dajne >98%, obsahuje spekacie pr\u00edsady na b\u00e1ze b\u00f3ru a uhl\u00edka<\/span><\/td>\nKostrov\u00e1 kon\u0161trukcia z SiC + <\/span>8\u201315% bez krem\u00edka<\/span><\/strong><\/td>\n<\/tr>\n
Otvoren\u00e1 p\u00f3rovitos\u0165<\/span><\/strong><\/td>\n10\u201320% (funk\u010dn\u00e9, pripojen\u00e9)<\/span><\/strong><\/td>\nZvy\u010dajne <2\u20133%<\/span><\/td>\nTakmer nula (p\u00f3ry vyplnen\u00e9 Si)<\/span><\/td>\n<\/tr>\n
Maxim\u00e1lna prev\u00e1dzkov\u00e1 teplota (vzduch)<\/span><\/strong><\/td>\n~1600\u20131650 \u00b0C<\/span><\/strong><\/td>\n~1500\u20131550 \u00b0C (v z\u00e1vislosti od pomocn\u00e9ho materi\u00e1lu)<\/span><\/td>\nObmedzen\u00e9 na ~1400 \u00b0C pri dlhodobom p\u00f4soben\u00ed<\/span><\/strong> (vo\u013en\u00fd Si zm\u00e4k\u010duje)<\/span><\/td>\n<\/tr>\n
Odolnos\u0165 vo\u010di teplotn\u00fdm \u0161okom<\/span><\/strong><\/td>\nVynikaj\u00face<\/span><\/strong> \u2014 hlavn\u00fd d\u00f4vod, pre\u010do sa zvolil RSiC<\/span><\/td>\nDobr\u00e9, ale obmedzen\u00e9 \u0165a\u017e\u0161\u00edm telom a pom\u00f4ckami<\/span><\/td>\nStredn\u00e1; pridan\u00fd vo\u013en\u00fd krem\u00edk vytv\u00e1ra f\u00e1zu s n\u00edzkou teplotou topenia<\/span><\/td>\n<\/tr>\n
Chemick\u00e1 odolnos\u0165<\/span><\/strong><\/td>\nVynikaj\u00face \u2014 \u017eiadny vo\u013en\u00fd Si, \u017eiadna sklovit\u00e1 f\u00e1za na hraniciach z\u0155n<\/span><\/td>\nTo je v poriadku, ale pomocn\u00e9 l\u00e1tky na spekanie sa m\u00f4\u017eu v agres\u00edvnych chemick\u00fdch prostrediach vyl\u00fahova\u0165<\/span><\/td>\nVo\u013en\u00fd krem\u00edk obmedzuje odolnos\u0165 vo\u010di siln\u00fdm z\u00e1sad\u00e1m a kyseline fluorovod\u00edkovej<\/span><\/strong><\/td>\n<\/tr>\n
Typick\u00e1 geometria \/ logika n\u00e1kladov<\/span><\/strong><\/td>\nDosky, nosn\u00edky, r\u00farky, trysky \u2014 <\/span>tenkostenn\u00e9 diely a diely podroben\u00e9 teplotn\u00fdm cyklom<\/span><\/strong><\/td>\nHust\u00e9 opotrebovate\u013en\u00e9 diely, tesnenia, mal\u00e9 presn\u00e9 s\u00fa\u010diastky<\/span><\/td>\nVe\u013ek\u00e9, zlo\u017eit\u00e9 diely s tvarom bl\u00ed\u017eiacim sa kone\u010dn\u00e9mu tvaru<\/span><\/strong> kde s\u00fa n\u00e1klady d\u00f4le\u017eitej\u0161ie ako maxim\u00e1lna teplota<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Pravidlo v\u00fdberu:<\/span><\/strong> priradi\u0165 zn\u00e1mku k <\/span>teplota, prostredie, chemick\u00fd kontakt a teplotn\u00fd cyklus \u2013 nie skratka \u201cSiC\u201d.\u201d<\/span><\/strong> Ak dan\u00e1 aplik\u00e1cia vy\u017eaduje hust\u00fd povrch s n\u00edzkou p\u00f3rovitos\u0165ou z h\u013eadiska tesnosti alebo odolnosti proti opotrebeniu, RSiC nie je vhodnou vo\u013ebou. Ak aplik\u00e1cia zah\u0155\u0148a opakovan\u00e9 r\u00fdchle zahrievanie a ochladzovanie nad 1450 \u00b0C a vo\u013en\u00fd krem\u00edk alebo f\u00e1za sl\u00fa\u017eiaca ako sp\u00e1jkovacie \u010dinidlo by sa stali pr\u00ed\u010dinou poruchy, RSiC je \u010dasto jedin\u00fdm typom SiC, ktor\u00fd t\u00fato sk\u00fa\u0161ku vydr\u017e\u00ed<\/span>.<\/span><\/p>\n

Technick\u00e9 \u0161pecifik\u00e1cie \u2013 \u00fadaje, ktor\u00e9 s\u00fa d\u00f4le\u017eit\u00e9 pre \u0161pecifik\u00e1ciu a vstupn\u00fa kontrolu<\/span><\/h2>\n

V nasleduj\u00facej tabu\u013eke je uveden\u00fd rozsah vlastnost\u00ed, ktor\u00fd by ste mali pou\u017ei\u0165 ako <\/span>referen\u010dn\u00fd bod pri hodnoten\u00ed technick\u00fdch listov ak\u00e9hoko\u013evek dod\u00e1vate\u013ea RSiC<\/span><\/strong>. Hodnoty sa l\u00ed\u0161ia v z\u00e1vislosti od ve\u013ekosti z\u0155n, sp\u00f4sobu formovania a profilu vypa\u013eovania; ak dod\u00e1vate\u013e uv\u00e1dza jedin\u00fa hodnotu bez udania rozsahu, je potrebn\u00e9 ho po\u017eiada\u0165 o inform\u00e1cie o sk\u00fa\u0161obnej norme a geometrii vzorky.<\/span><\/p>\n

\n
\n
 <\/div>\n
 <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/span><\/th>\nTypick\u00fd rozsah RSiC<\/span><\/th>\nTechnick\u00e1 pozn\u00e1mka<\/span><\/th>\n<\/tr>\n<\/thead>\n
Obsah SiC<\/span><\/strong><\/td>\n\u226599 hmotnostn\u00fdch %<\/span><\/td>\nBez sp\u00e1jkovacieho prostriedku<\/span><\/strong> je to pr\u00e1ve toto tvrdenie o \u010distote, ktor\u00e9 je charakteristick\u00e9; po\u017eiadajte o overenie met\u00f3dou ICP alebo XRF.<\/span><\/td>\n<\/tr>\n
Objemov\u00e1 hustota<\/span><\/strong><\/td>\n2,0\u20132,75 g\/cm\u00b3<\/span><\/td>\nNi\u017e\u0161ia hodnota znamen\u00e1 vy\u0161\u0161iu p\u00f3rovitos\u0165; hustota sama o sebe nie je ukazovate\u013eom kvality.<\/span><\/td>\n<\/tr>\n
Otvoren\u00e1 p\u00f3rovitos\u0165<\/span><\/strong><\/td>\n10\u201320% (funk\u010dn\u00e9 triedy)<\/span><\/strong><\/td>\nStr\u00e1nka <\/span>pripojen\u00fd<\/span><\/strong> Pre priepustnos\u0165 a tepeln\u00fd \u0161ok m\u00e1 v\u00fdznam charakter por\u00e9znosti, nielen jej percentu\u00e1lny podiel.<\/span><\/td>\n<\/tr>\n
Pevnos\u0165 v ohybe (RT)<\/span><\/strong><\/td>\n~80\u2013110 MPa<\/span><\/td>\nRSiC je <\/span>nie<\/span><\/strong> SiC s najvy\u0161\u0161ou pevnos\u0165ou; nepou\u017e\u00edvajte ho na nosn\u00e9 kon\u0161truk\u010dn\u00e9 \u010dasti, kde by bol SSiC pevnej\u0161\u00ed.<\/span><\/td>\n<\/tr>\n
Pevnos\u0165 v ohybe (1200 \u00b0C)<\/span><\/strong><\/td>\n~90\u2013110 MPa<\/span><\/td>\nUdr\u017eanie pevnosti pri teplote je k\u013e\u00fa\u010dovou v\u00fdhodou oproti zliatin\u00e1m obsahuj\u00facim vo\u013en\u00fd krem\u00edk.<\/span><\/td>\n<\/tr>\n
Maxim\u00e1lna prev\u00e1dzkov\u00e1 teplota (vzduch)<\/span><\/strong><\/td>\n~1600\u20131650 \u00b0C<\/span><\/strong><\/td>\nOkrem toho sa zr\u00fdch\u013euje kinetika oxid\u00e1cie; teplota v inertnej atmosf\u00e9re m\u00f4\u017ee dosiahnu\u0165 ~1800 \u00b0C.<\/span><\/td>\n<\/tr>\n
Maxim\u00e1lna prev\u00e1dzkov\u00e1 teplota (v inertnom prostred\u00ed)<\/span><\/strong><\/td>\n~1800 \u00b0C<\/span><\/td>\nPri porovn\u00e1van\u00ed tvrden\u00ed dod\u00e1vate\u013eov v\u00fdslovne uve\u010fte atmosf\u00e9ru.<\/span><\/td>\n<\/tr>\n
Tepeln\u00e1 vodivos\u0165 (RT)<\/span><\/strong><\/td>\n~23 W\/m\u00b7K<\/span><\/td>\nStredn\u00e1, nie najvy\u0161\u0161ia spomedzi tried SiC, ale posta\u010duj\u00faca pre pecn\u00e9 pr\u00edslu\u0161enstvo a \u017eiariv\u00e9 trubice.<\/span><\/td>\n<\/tr>\n
CTE (20\u20131000 \u00b0C)<\/span><\/strong><\/td>\n~4,6\u20134,8 \u00d7 10\u207b\u2076 \/K<\/span><\/td>\nN\u00edzka roz\u0165a\u017enos\u0165 je z\u00e1kladom odolnosti vo\u010di teplotn\u00fdm \u0161okom na \u00farovni materi\u00e1lu.<\/span><\/td>\n<\/tr>\n
Parameter tepeln\u00e9ho \u0161oku R1<\/span><\/strong><\/td>\n~56 K<\/span><\/td>\nPorovn\u00e1vacia metrika; sl\u00fa\u017ei na porovnanie tried RSiC od r\u00f4znych dod\u00e1vate\u013eov, nie ako absol\u00fatne krit\u00e9rium na pos\u00fadenie, \u010di v\u00fdrobok sp\u013a\u0148a po\u017eiadavky alebo nie.<\/span><\/td>\n<\/tr>\n
Ve\u013ekos\u0165 z\u0155n<\/span><\/strong><\/td>\n1\u2013150 \u03bcm (v pozd\u013a\u017enom smere)<\/span><\/td>\nHrub\u00e9 zrn\u00e1 s\u00fa v RSiC be\u017en\u00e9 a prispievaj\u00fa k most\u00edkovitej \u0161trukt\u00fare; ve\u013emi jemn\u00e9 zrn\u00e1 m\u00f4\u017eu nazna\u010dova\u0165 in\u00fa triedu.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Zdroje \u00fadajov poch\u00e1dzaj\u00fa z technick\u00fdch listov dod\u00e1vate\u013eov; uveden\u00e9 rozsahy odr\u00e1\u017eaj\u00fa be\u017en\u00e9 obchodn\u00e9 odch\u00fdlky a nepredstavuj\u00fa z\u00e1ruku pre v\u0161etky geometrie<\/span><\/strong>.<\/span><\/p>\n

Kedy je RSiC spr\u00e1vna \u0161pecifik\u00e1cia \u2013 a kedy je nespr\u00e1vna<\/span><\/h2>\n

Uve\u010fte RSiC, ak ide o poruchu sp\u00f4soben\u00fa tepeln\u00fdm \u0161okom alebo chemick\u00fdm p\u00f4soben\u00edm pri teplote<\/span><\/h3>\n

Pecn\u00e9 pr\u00edslu\u0161enstvo pre r\u00fdchle vypa\u013eovacie cykly.<\/span><\/strong> Tenk\u00e9 podlo\u017eky, nosn\u00edky a valce, ktor\u00e9 s\u00fa vystaven\u00e9 opakovan\u00e9mu r\u00fdchlemu zahrievaniu a ochladzovaniu pri teplot\u00e1ch nad 1450 \u00b0C. N\u00edzka zmr\u0161tite\u013enos\u0165 po\u010das spekania RSiC umo\u017e\u0148uje <\/span>tenkostenn\u00e9 profily bez deform\u00e1cie<\/span><\/strong>, a otvoren\u00e1 p\u00f3rovitos\u0165 umo\u017e\u0148uje absorpciu tepeln\u00e9ho nap\u00e4tia, ktor\u00e9 by v pr\u00edpade hustej\u0161ieho telesa viedlo k jeho prasknutiu<\/span>.<\/span><\/p>\n

Trysky hor\u00e1kov a \u017eiarov\u00e9 r\u00farky.<\/span><\/strong> Trysky hor\u00e1kov z RSiC sa pou\u017e\u00edvaj\u00fa v voz\u00edkov\u00fdch, tunelov\u00fdch a valcov\u00fdch peciach, preto\u017ee odol\u00e1vaj\u00fa oxid\u00e1cii a teplotn\u00fdm cyklom a\u017e do ~1650\u20131700 \u00b0C bez vzniku trhl\u00edn, ku ktor\u00fdm doch\u00e1dza v reak\u010dne viazanom SiC, ke\u010f sa vo\u013en\u00fd krem\u00edk st\u00e1va slabou f\u00e1zou<\/span>.<\/span><\/p>\n

S\u00fa\u010diastky pre polovodi\u010dov\u00e9 a fotovoltaick\u00e9 pece.<\/span><\/strong> RSiC s vysokou \u010distotou sa pou\u017e\u00edva na <\/span>LPCVD lopatky, vane a vn\u00fatorn\u00e9 \u010dasti dif\u00faznych pec\u00ed<\/span><\/strong> kde je potrebn\u00e9 zabr\u00e1ni\u0165 kontamin\u00e1cii kovmi a tvorbe \u010dast\u00edc. Rozhoduj\u00facim faktorom \u0161pecifik\u00e1cie je v tomto pr\u00edpade absencia spekac\u00edch pr\u00edsad, nie hustota<\/span>.<\/span><\/p>\n

Ochrann\u00e9 r\u00farky komponentov v atmosf\u00e9rick\u00fdch peciach.<\/span><\/strong> Prepojen\u00e1 p\u00f3rovitos\u0165 RSiC neohrozuje chemick\u00fa inertnos\u0165 vo v\u00e4\u010d\u0161ine atmosf\u00e9r pec\u00ed a materi\u00e1l zn\u00e1\u0161a teplotn\u00e9 gradienty cez stenu r\u00farky bez odlupovania.<\/span><\/p>\n

Neuv\u00e1dzajte RSiC, ak ide o po\u017eiadavku na hustotu, tesnos\u0165 alebo maxim\u00e1lnu pevnos\u0165<\/span><\/h3>\n

Ak mus\u00ed diel zabezpe\u010di\u0165 v\u00e1kuov\u00e9 tesnenie, ma\u0165 le\u0161ten\u00fa opotrebovate\u013en\u00fa plochu alebo nies\u0165 kon\u0161truk\u010dn\u00e9 za\u0165a\u017eenie, kde <\/span>Vy\u0161\u0161ia hustota a pevnos\u0165 materi\u00e1lu SSiC<\/span><\/strong> s\u00fa rozhoduj\u00face vlastnosti, RSiC nie je vhodn\u00fd typ. Podobne, ak je diel ve\u013ek\u00fd, geometricky zlo\u017eit\u00fd a citliv\u00fd na n\u00e1klady pri teplot\u00e1ch ni\u017e\u0161\u00edch ako ~1400 \u00b0C, <\/span>SiSiC\/RBSiC<\/span><\/strong> je zvy\u010dajne vhodnej\u0161ou vo\u013ebou \u2013 jeho vo\u013en\u00fd krem\u00edk vypl\u0148uje p\u00f3rovitos\u0165 a umo\u017e\u0148uje v\u00fdrobu s tvarom bl\u00ed\u017eiacim sa kone\u010dn\u00e9mu tvaru, av\u0161ak za cenu obmedzen\u00ed z h\u013eadiska vysok\u00fdch tepl\u00f4t a chemickej odolnosti<\/span>.<\/span><\/p>\n

Odpovede na ot\u00e1zky, ktor\u00e9 si kupuj\u00faci skuto\u010dne klad\u00fa pred odoslan\u00edm \u017eiadosti o cenov\u00fa ponuku<\/span><\/h2>\n

Je RSiC to ist\u00e9 ako SSiC?<\/span><\/strong> Nie. SSiC sa spek\u00e1 bez tlaku s pou\u017eit\u00edm spekac\u00edch pr\u00edsad a je hust\u00fd. RSiC sa rekry\u0161talizuje bez pr\u00edsad a zachov\u00e1va si <\/span>kon\u0161truk\u010dne dan\u00e1 otvoren\u00e1 p\u00f3rovitos\u0165<\/span><\/strong>. Ide o r\u00f4zne materi\u00e1ly s odli\u0161n\u00fdmi kompromismi medzi vlastnos\u0165ami, nie s\u00fa to synonym\u00e1<\/span>.<\/span><\/p>\n

Je mo\u017en\u00e9 pou\u017e\u00edva\u0165 RSiC pri teplot\u00e1ch nad 1650 \u00b0C na vzduchu?<\/span><\/strong> Praktick\u00e1 nepretr\u017eit\u00e1 hranica vo vzduchu je pribli\u017ene <\/span>1600\u20131650 \u00b0C<\/span><\/strong>. Niektor\u00ed dod\u00e1vatelia uv\u00e1dzaj\u00fa vy\u0161\u0161ie hodnoty pre kr\u00e1tkodob\u00e9 pou\u017eitie alebo prev\u00e1dzku v inertnej atmosf\u00e9re; op\u00fdtajte sa na <\/span>atmosf\u00e9ra a trvanie<\/span><\/strong> za ak\u00fdmko\u013evek vy\u0161\u0161\u00edm n\u00e1rokom.<\/span><\/p>\n

Znamen\u00e1 por\u00e9znos\u0165, \u017ee diel je menej pevn\u00fd alebo menej kvalitn\u00fd?<\/span><\/strong> To znamen\u00e1, \u017ee materi\u00e1l je <\/span>optimalizovan\u00e9 s oh\u013eadom na teplotn\u00fd \u0161ok a \u010distotu, nie na maxim\u00e1lnu pevnos\u0165<\/span><\/strong>. Ak va\u0161a aplik\u00e1cia nevy\u017eaduje tieto vlastnosti, vhodnej\u0161ia by pre v\u00e1s mohla by\u0165 hust\u0161ia trieda. P\u00f3rovitos\u0165 je \u0161pecifika\u010dn\u00e1 veli\u010dina, nie ozna\u010denie vady.<\/span><\/p>\n

Ak\u00fd je rozdiel medzi RSiC a SiSiC\/RBSiC pri pou\u017eit\u00ed v chemick\u00fdch prostrediach?<\/span><\/strong> SiSiC\/RBSiC obsahuje <\/span>vo\u013en\u00fd krem\u00edk<\/span><\/strong>, \u010do obmedzuje jeho dlhodob\u00e9 pou\u017e\u00edvanie pri teplot\u00e1ch nad ~1400 \u00b0C a zni\u017euje odolnos\u0165 vo\u010di siln\u00fdm z\u00e1sad\u00e1m a prostrediam obsahuj\u00facim kyselinu fluorovod\u00edkov\u00fa. RSiC neobsahuje vo\u013en\u00fd krem\u00edk ani sklovit\u00fa f\u00e1zu na hraniciach z\u0155n, a preto sa uprednost\u0148uje, ke\u010f <\/span>chemick\u00e1 inertnos\u0165 pri danej teplote<\/span><\/strong> je to po\u017eiadavka<\/span>.<\/span><\/p>\n

Je mo\u017en\u00e9 doda\u0165 diely z RSiC v nestandardn\u00fdch tvaroch, nielen vo forme \u0161tandardn\u00fdch dosiek a r\u00farok?<\/span><\/strong> \u00c1no, v r\u00e1mci geometrick\u00fdch obmedzen\u00ed procesu rekry\u0161taliz\u00e1cie. RSiC je ve\u013emi vhodn\u00fd na <\/span>tenkostenn\u00e9 tvary s ve\u013ekou z\u00e1kladnou plochou<\/span><\/strong> ako s\u00fa napr\u00edklad dosky a nosn\u00edky, av\u0161ak mimoriadne hrub\u00e9 profily alebo zlo\u017eit\u00e9 vn\u00fatorn\u00e9 dutiny sa m\u00f4\u017eu ekonomickej\u0161ie vyr\u00e1ba\u0165 z materi\u00e1lu sp\u00e1jan\u00e9ho reak\u010dn\u00fdm lepen\u00edm. Poskytnite v\u00fdkres a prev\u00e1dzkov\u00e9 podmienky na pos\u00fadenie vyrobite\u013enosti.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

Recrystallized Silicon Carbide (RSiC \/ RSC) \u2014 for Kiln Furniture, Burner Nozzles & High-Temperature Structural Parts If your furnace cycle runs above 1450\u00b0C, involves rapid heating\/cooling, and a sintering aid or free-silicon phase would become the weak link \u2014 this is the material page you should read before you specify. RSiC is not \u201canother SiC… <\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":70,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","ngg_post_thumbnail":0,"footnotes":""},"categories":[23],"tags":[],"class_list":["post-735","post","type-post","status-publish","format-standard","hentry","category-recrystallized-silicon-carbide"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/posts\/735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/comments?post=735"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/posts\/735\/revisions"}],"predecessor-version":[{"id":736,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/posts\/735\/revisions\/736"}],"wp:attachment":[{"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/media?parent=735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/categories?post=735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbide.net\/sk\/wp-json\/wp\/v2\/tags?post=735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}