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Title page for etd-0905112-140531


URN etd-0905112-140531 Statistics This thesis had been viewed 1377 times. Download 2 times.
Author Chen-Yu Hsieh
Author's Email Address No Public.
Department Materials Engineering
Year 2011 Semester 2
Degree Master Type of Document Master's Thesis
Language zh-TW.Big5 Chinese Page Count 80
Title SINTERING OF α-SiC WITH Y2O3-Al2O3-SiO2 GLASS ADDITIVES
Keyword
  • silicon carbide
  • liquid phase sintering
  • sintering aids
  • sintering aids
  • liquid phase sintering
  • silicon carbide
  • Abstract Non-reactive liquid-phase sintering of SiC has been studied using different additives. Additives were wet ball milling with SiC powder, dry-pressing at 50MPa to form disc-shaped pellets, then were sintered at 1200~15000C for 4 hours. The results indicated SiC samples with Y2O3-Al2O3-SiO2 , Y2O3-Al2O3-SiO2-CaO , Ca-Al-Si-O glass additive did not show any densification after pressureless sintering. This experiment also used low melting point of Ca-Al-Si-O and Mg-B-Si-O glass as additives, and hot-pressed. The hot-pressed samples did not significantly densified either.
    Results indicated pressureless sintering SiC+30vol% Y2O3-Al2O3-SiO2 had the highest compressive strength of 71MPa with bulk density 1.9 g/cm3.Hot-pressed SiC+30vol% Mg-B-Si-O glass had compressive strength of 26MPa and bulk density of 2.2 g/cm3.
    Advisor Committee
  • Yung-jen Lin - advisor
  • Jiin-jyh Shyu - co-chair
  • Sea-fue Wang - co-chair
  • Files indicate in-campus access only
    Date of Defense 2012-07-17 Date of Submission 2012-09-05


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