Preparation Of Fine Grained SiC At Reduced Temperature By Two-Step Sintering

• Autorzy: Kim K.-W. , Oh K.-S. , Lee H. , Kim B. S. , Chung T.-J.

Identyfikatory

DOI

10.1515/amm-2015-0168

Warianty tytułu

PL

Wytwarzanie drobnoziarnistego SiC w obniżonej temperaturze przez dwuetapowe spiekanie

• Języki publikacji: EN

Abstrakty

EN

Two-step sintering route was applied for the densification SiC by promoting the role of liquid phase. The specimen contained 8 vol% of liquid phase composed of Al₂O₃ and Y₂O₃. The heating schedule consisted with initial rapid heating to 2000°C and immediate quenching to 1700 or 1750°C. By heating at elevated temperature, even distribution of the liquid phase was intended. The heat treatment at reduced temperature was to suppress the evaporative loss of the liquid and to secure the time for densification. The two-step sintering effectively suppressed loss of mass and coarsening. The resultant SiC was thus dense and was composed of fine grains exhibiting hardness of 2321 kgf/mm².

Słowa kluczowe

EN

SiC; liquid phase; two step sintering; coarsening; hardness

PL

SiC; faza ciekła; spiekanie dwuetapowe; odporność; twardość

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 2B
• Strony: 1539--1542
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Kim K.-W.

• School of Materials Science and Engineering, Industrial Technology Center for Environment-Friendly Materials, Andong National University, Andong, Republic of Korea

autor

Oh K.-S.

• School of Materials Science and Engineering, Industrial Technology Center for Environment-Friendly Materials, Andong National University, Andong, Republic of Korea

autor

Lee H.

• School of Materials Science and Engineering, Industrial Technology Center for Environment-Friendly Materials, Andong National University, Andong, Republic of Korea

autor

Kim B. S.

• R&D Center, Wonik Qnc, Gumi, Republic of Korea

autor

Chung T.-J.

• School of Materials Science and Engineering, Industrial Technology Center for Environment-Friendly Materials, Andong National University, Andong, Republic of Korea

Bibliografia

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