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含稻壳灰的低热膨胀蜂窝堇青石
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作者 李建勇 s.m.naga 《国外建材科技》 1997年第1期26-27,38,共3页
1 引言 利用稻壳灰SiO_2制备了具有低热膨胀系数的挤出成型的堇青石(2MgO-2Al_2O_3-5SiO_2)蜂窝陶瓷坯体。尽管已全部形成了堇青石,稻壳灰仍沿挤出方向排列并且保持其原有骨架。因此孔径分布大约取得平均值5μm,所制得的蜂窝体有比较合... 1 引言 利用稻壳灰SiO_2制备了具有低热膨胀系数的挤出成型的堇青石(2MgO-2Al_2O_3-5SiO_2)蜂窝陶瓷坯体。尽管已全部形成了堇青石,稻壳灰仍沿挤出方向排列并且保持其原有骨架。因此孔径分布大约取得平均值5μm,所制得的蜂窝体有比较合适的断裂摸量(MOR)。 为适应多种用途,包括汽车废气控制催化剂、臭氧抑制催化剂、木柴炉燃烧器、内燃机的过滤装置等,现已用各种不同的物质组成制得了单片式蜂窝陶瓷。 展开更多
关键词 陶瓷 坯体 稻壳灰 蜂窝 堇青石 低热膨胀
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Developing of Load-bearing Bones Replacement Based on Cerium Compounds/Nano-hydroxyapatite Composites
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作者 s.m.naga 《Non-Metallic Material Science》 2021年第2期46-48,共3页
The importance of implantable biomaterials is growing up in recent days for modern medicine,especially fixation,replacement,and regeneration of load-bearing bones.Through the past several years,metals,ceramics,polymer... The importance of implantable biomaterials is growing up in recent days for modern medicine,especially fixation,replacement,and regeneration of load-bearing bones.Through the past several years,metals,ceramics,polymers,and their composites,have been used for the reconstruction of hard tissues.Special standards such as adequate mechanical and biocompatible properties are required to avoid rejection reactions of the tissues.Recently,a number of novel advanced biomaterials are developed as promising candidates.Amongst those,cerium-based biomaterials acquired attention as a substitution material for hard tissues reconstruction because of cerium antioxidative properties,which enabled it to be used to decrease mediators of inflammation.In addition,the eminent mechanical properties,as well as the perfect chemical and biological compatibilities,make cerium-based biomaterials attractive for biomedical application. 展开更多
关键词 Hard tissue Load-bearing BIOMATERIALS
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