工程陶瓷材料具有引人注目的特性：高硬度、高耐热性、化学惰性、热传导率低、断裂韧度低等。
Engineering ceramic materials have attractive properties: high hardness, high thermal resistance, chemical inertness, low thermal conductivity and low fracture toughness etc.
结果发现，失效件的硅含量偏高、硬度值很不均匀，冲击韧度和伸长率远低于材质要求，因而导致脆断。
The results shows that the failure parts has high silicon content and uneven hardness , the impact toughness and elongation is far below the specification of the material.
并且含水率对各个方向木材断裂韧度的影响趋势是一致的。
TL and TR specimen crack extension direction is consistent with the orig…
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