耐火与石灰 ›› 2024, Vol. 49 ›› Issue (2): 35-39.

• 综述 • 上一篇    下一篇

成型工艺对黏土结合碳化硅制品性能的影响

  

  1. (中钢集团洛阳耐火材料研究院有限公司,洛阳 471023)
  • 出版日期:2024-04-10 发布日期:2024-04-28

The influence of molding process on the properties of clay bonded#br# silicon carbide products#br#

  1. (Sinosteel Luoyang Institute of Refractories Research Co.,Ltd.,Luoyang 471023,China)
  • Online:2024-04-10 Published:2024-04-28

摘要: 以碳化硅、硅微粉为主要原料,以粘土为结合剂,制备出粘土结合的碳化硅制品。探究了不同成型压力
(100 MPa、150 MPa、180 MPa、200 MPa 和230 MPa)和颗粒级配对碳化硅制品显微结构及其性能的影响。结果表明:
当添加质量分数17% 的碳化硅细粉时,体积密度值为2.42 g/cm3;常温耐压强度和常温抗折强度分别为83.46 MPa 和
17.4 MPa;同时抗氧化性得到进一步改善。当成型压力为230 MPa 时,压制的试样的机械性能和抗氧化性均达到最大值。

关键词: 碳化硅材料, 颗粒级配, 成型压力, 抗氧化性

Abstract: Abstract:Clay bonded silicon carbide products are prepared with silicon carbide and silica
powder as the main raw materials and clay as the binder. The influence of different moulding
pressures(100 MPa,150 MPa,180 MPa,200 MPa,and 230 MPa)and particle grading on
the microstructure and properties of silicon carbide products are studied. The results show that
when 17% silicon carbide fine powder is added,the bulk density value is 2.42 g/cm3,and the
room temperature compressive strength and flexural strength are 83.46 MPa and 17.4 MPa,
respectively; meanwhile,the oxidation resistance has been further improved. When the molding
pressure is 230 MPa,the mechanical properties and oxidation resistance of the pressed samples
reach their maximum values.

Key words: Silicon carbide material, Particle grading, Pressing pressure, Oxidation resistance

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