| 共价晶体硬度的微观理论 |
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| 引用本文： | 田永君.共价晶体硬度的微观理论[J].功能材料信息,2005,2(4):20-22,27. |
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| 作者姓名： | 田永君 |
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| 作者单位： | 燕山大学材料科学与工程学院,亚稳材料制备技术与科学重点实验室,河北秦皇岛066004 |
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| 基金项目： | 国家自然科学基金资助项目（50225207,50372055,50472051） |
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| 摘 要： | 基于共价固体硬度正比于单位面积上每根化学键对压头的阻抗之和的假设．提出了估计极性共价固体硬度的微观理论。计算了新近合成的立方尖晶石结构Si3N4的理论硬度，计算值与最近报道的实验值吻合。最后．预测了高密度C3N4异构体的理论硬度。
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| 关 键 词： | 硬度 共价键 晶体 微观理论 |
| 收稿时间： | 2005-06-10 |
Microscopic theory of hardness of covalent crystals |
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| Tian YongJun.Microscopic theory of hardness of covalent crystals[J].Functional Materials Information,2005,2(4):20-22,27. |
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| Authors: | Tian YongJun |
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| Abstract: | Based on the supposition that the hardness of covalent crystal is intrinsic and equivalent to the sum of resistance of each bond per unit area to indenter,a microscopic theory for the evaluation of hardness of covalent crystals is presented. The theoretical hardness of cubic spinel Si3N4 is calculated, in agreement with its experimental values reported recently. Finally, the theoretical hardness of high-density C3N4, polymorphs is predicted. |
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| Keywords: | hardness covalent bond crystal |
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