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

Yoonjoo Lee, Ji Hwoan Lee, Dong Geun Shin, Alfian Noviyanto, Heyon Myong Lee, Toshiyuki Nishimura, Byung Koog Jang, Woo Teck Kwon, Younghee Kim, Sukyoung Kim, Young Hwan Han

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8 Citations (Scopus)

Abstract

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 α phase, which is stable at high temperatures.

Original languageEnglish
Pages (from-to)188-190
Number of pages3
JournalScripta Materialia
Volume143
DOIs
Publication statusPublished - Jan 15 2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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    Lee, Y., Lee, J. H., Shin, D. G., Noviyanto, A., Lee, H. M., Nishimura, T., Jang, B. K., Kwon, W. T., Kim, Y., Kim, S., & Han, Y. H. (2018). Phase transformation on spark plasma sintered dense polycarbosilane-derived SiC without additive. Scripta Materialia, 143, 188-190. https://doi.org/10.1016/j.scriptamat.2017.02.031