| 金属陶瓷断裂韧性的价电子结构设计 |
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| 引用本文： | 刘宁,姜勇,吕庆荣,熊惟皓,崔昆.金属陶瓷断裂韧性的价电子结构设计[J].合肥工业大学学报(自然科学版),1999(4). |
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| 作者姓名： | 刘宁 姜勇 吕庆荣 熊惟皓 崔昆 |
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| 作者单位： | 合肥工业大学材料科学与工程系，华中理工大学材料学院 |
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| 基金项目： | 国家自然科学基金,华中理工大学模具技术国家重点实验室基金 |
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| 摘 要： | 依据固体分子经验电子理论，运用键距差方法，计算了不同成分金属陶瓷中陶瓷相的价电子结构，讨论了Ｍｏ、Ｗ、Ｎｂ、Ｔａ元素对陶瓷相价电子结构的影响，找出了金属陶瓷的断裂韧性与陶瓷相价电子结构之间的关系，据此推导出金属陶瓷的断裂韧性与其成分之间的关系式，并初步进行了实验验证
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| 关 键 词： | 金属陶瓷 断裂韧性 化学成分 价电子结构 |
Design of valence electron structure of feacture toughness of cermets |
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| LIU Ning ,JIANG Yong ,LU Qing rong ,XIONG Wei hao ,CUI Kun.Design of valence electron structure of feacture toughness of cermets[J].Journal of Hefei University of Technology(Natural Science),1999(4). |
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| Authors: | LIU Ning JIANG Yong LU Qing rong XIONG Wei hao CUI Kun |
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| Institution: | LIU Ning 1,JIANG Yong 1,LU Qing rong 1,XIONG Wei hao 2,CUI Kun 2 |
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| Abstract: | Based on the empirical electron theory of solids and molecules,the valence electron structures of Ti(C,N) based cermets with different compositions have been calculated by means of bond length difference (BLD) method.The effects of such elements as molybdenum,tungsten,niobium and tantalum on the valence electron structures of ceramics have been discussed.The relationship between the valence electron structures of ceramics and the fracture toughness of cermets has also been proposed,and the relationship between the chemical composition and fracture toughness of cermets has been studied and primary tests also conducted. |
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| Keywords: | cermets fracture toughness chemical composition valence electron structure |
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