武安华, 曹文斌, 马芳, 李江涛, 葛昌纯. SiC的固相热压烧结[J]. 工程科学学报, 2000, 22(4): 328-330. DOI: 10.13374/j.issn1001-053x.2000.04.042
引用本文: 武安华, 曹文斌, 马芳, 李江涛, 葛昌纯. SiC的固相热压烧结[J]. 工程科学学报, 2000, 22(4): 328-330. DOI: 10.13374/j.issn1001-053x.2000.04.042
shu
WU Anhua, CAO Wenbin, MA Fang, LI Jiangtao, GE Changchun. Solid State Hot Pressing of SiC Ceramics[J]. Chinese Journal of Engineering, 2000, 22(4): 328-330. DOI: 10.13374/j.issn1001-053x.2000.04.042
Citation: WU Anhua, CAO Wenbin, MA Fang, LI Jiangtao, GE Changchun. Solid State Hot Pressing of SiC Ceramics[J]. Chinese Journal of Engineering, 2000, 22(4): 328-330. DOI: 10.13374/j.issn1001-053x.2000.04.042
shu

SiC的固相热压烧结

Solid State Hot Pressing of SiC Ceramics

    摘要
  • 摘要: 以α-SiC粉末为起始原料,B和C粉末为助烧剂,采用适当的热压烧结工艺,在1950℃,25MPa条件下获得了相对密度为97.8%的α-SiC块体陶瓷.其抗弯强度和断裂韧性值分别为383MPa,4.95MPa·m1/2.并初步研究了致密化机理.

     

    Abstract: α-SiC ceramic was obtained by hot-pressing of α-SiC powders with B and C as additives. The relative density of the materials is 97.8%, which was hot-pressed at 1900℃ and 25 MPa. The values of the flexural strength and fracture toughness reached 383 MPa and 4.95 MPa·m1/2 respectively.The densification mechanism was deduced.

     

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