Phase transformation on spark plasma sintered dense polycarbosilane-derived SiC without additive

被引：15

作者：

Lee, Yoonjoo ^{[1
]}

Lee, Ji Hwoan ^{[2
]}

Shin, Dong-Geun ^{[3
]}

Noviyanto, Alfian ^{[4
]}

Lee, Heyon-Myong ^{[1
]}

Nishimura, Toshiyuki ^{[4
]}

Jang, Byung-Koog ^{[4
]}

Kwon, Woo-Teck ^{[1
]}

Kim, Younghee ^{[1
]}

Kim, Sukyoung ^{[2
]}

Han, Young-Hwan ^{[2
,5
]}

机构：

[1] Korea Inst Ceram Engn & Technol, Energy & Environm Div, 101 Soho Ro, Jinju Si 52851, Gyeongsangnam D, South Korea

[2] Yeungnam Univ, Sch Mat Sci & Engn, Gyongsan, South Korea

[3] Korea Inst Ceram Engn & Technol, Convergence R&D Div, 101 Soho Ro, Jinju Si 52851, Gyeongsangnam D, South Korea

[4] NIMS, Tsukuba, Ibaraki, Japan

[5] Wuhan Univ Technol, Int Sch Mat Sci & Engn, Wuhan, Hubei, Peoples R China

来源：

SCRIPTA MATERIALIA | 2018年 / 143卷

关键词：

Spark plasma sintering; Silicon carbides; Phase transformation; Polcarbosilane; STACKING-FAULTS; SPS; BETA; DENSIFICATION; PRESSURE;

D O I：

10.1016/j.scriptamat.2017.02.031

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

SiC was sintered by spark plasma sintering (SPS) using polycarbosilane (PCS), and the effects of pressure on the sintering behavior of SiC during SPS were investigated. The pressure conditions were set as 40 and 80 MPa, and pyrolyzed PCS was used to induce reactive sintering during heat treatment such as pyrolysis, crystallization, and crystal growth. According to the results, a high pressure accelerated the reactions in samples and resulted in a high-density body consisting of small-sized grains; however, it induced a phase transition to the or phase, which is stable at high temperatures. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：188 / 190

页数：3

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