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中文摘要：
通过在(Ti+B4C)体系中引入不同含量的(CrO3+Al)高能铝热剂,采用超重力场反应加工技术,在不同反应绝热温度下制备出含有不同质量分数Cr基合金相的TiC-TiB2凝固陶瓷。用XRD、FESEM和EDS对样品进行分析。结果表明,TiC-TiB2凝固陶瓷由大量细小的TiB2片晶、不规则TiC晶粒及分布于TiB2和TiC之间的Cr基合金相与少量孤立分布的Al2O3夹杂组成。通过增加高能铝热剂添加量,提高反应熔体绝热温度与增加金属液相的耦合效应,不仅能有效降低Al2O3夹杂物含量、促进陶瓷致密化,而且更有利于TiB2基体相片晶的超细晶(平均厚度小于1μm)生成,进而使陶瓷相对密度、抗弯强度与断裂韧性均显著提升。
同期刊论文项目
同项目期刊论文
Microstructures and Properties of TiC-TiB2 Composites Prepared by Combustion Synthesis in Enhanced H
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Preparation and Properties of Solidified TiC-TiB2 with Hypoeutectic, Eutectic and Hypereutectic Micr
Fusing Joining and Composite Forming of Solidified TiC-TiB2 Ceramic with Stainless Steel and Ti-6Al-
The Influence of Steel Cover Thickness on Ballistic Performance of Confined TiC-TiB2 Ceramic Tiles A
Layered Composite of TiC-TiB2 to Ti-6Al-4V in Graded Composition by Combustion Synthesis in High-gra
Composition Modification and Mechanical Properties of Solidified TiB2-based Ceramic Prepared by Comb
Multiscale and Multilevel Composite of Solidified TiC-TiB2 with Ti-6Al-4V Achieved by Fusion Bonding
Microstructure Homogeneity, Crack Propagation and Self-Toughening of Solidified TiC-TiB2 Composite P
TiC-TiB2 Coating on Ti-6Al-4V alloy Substrate in Graded Composition Achieved by Fusion bonding and A
Ballistic Performance of TiC-TiB2 Composite Armour under the Impact of Long-Rod Tungsten alloy Proje
Ceramic Coating of TiC-TiB2 on 1Cr18Ni9Ti Substrate Achieved by Combustion Synthesis in High-gravity
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