Synthesis of Composite Material by Laser Chemical Reaction

激光化学反应合成复合材料

• 批准号: 11650122
• 负责人: NAKAMOTO Takeshi
• 金额: $ 2.3万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650122/
• 关键词: Boron carbide; Titanium boride; YAG laser; Laser sintering; Composite ceramics; X-ray diffraction; Hardness

This research work deals with reactive Laser sintering of composite ceramics made of boron carbide (B_4C) and titanium boride (TiB_2) from the mixture of graphite, boron and titanium powder. Boron carbide is a hard material, therefore, it is expected to apply for polishing powder. However, boron carbide has low toughness, it is not used sufficiently. It is developed to produce composite ceramics made of boron carbide and titanium boride in order to improve the toughness of the ceramics. But it is difficult to compact these materials (boron carbide and titanium boride) because the hardness of the materials are very high. The compaction becomes easy by using present method because the hardness of the mixture (graphite, boron and titanium powder) is not high.At first, the conditions to produce the composite ceramics are examined. The mixture is irradiated by the YAG Laser beam. And the produced material is analyzed by X-ray diffraction.Next, boron powder is spread on the titanium carbide substrate, and the YAG Laser beam is scanning on the substrate. The sintered layer is used as a cutting tool. The tool life of the sintered layer is as same as that of the titanium carbide tool.

这项研究工作涉及由石墨，硼和钛粉的混合物中的由硼碳化物（B_4C）和硼化钛（TIB_2）制成的复合陶瓷的反应激光烧结。硼碳酸酯是一种硬质材料，因此，预计将申请抛光粉。但是，碳化氢碳化物的韧性低，未充分使用。它的开发是生产由硼碳酸硼和硼化钛制成的复合陶瓷，以改善陶瓷的韧性。但是，由于材料的硬度很高，因此很难压实这些材料（碳化物和硼化钛）。通过使用当前方法，由于混合物的硬度（石墨，硼和钛粉）的硬度不高。首先，检查了复合陶瓷的条件。混合物被YAG激光束照射。并通过X射线衍射分析产生的材料。次，硼粉散布在碳化钛底物上，YAG激光束在底物上扫描。烧结层用作切割工具。烧结层的工具寿命与碳化钛工具的工具寿命相同。

项目成果

中本剛: "YAGレーザーによるTiB_2の成膜"日本機械学会東海支部第49期総会講演会講演論文集. 239-240 (2000)

Tsuyoshi Nakamoto：“YAG激光沉积TiB_2”日本机械工程师学会东海分会第49届大会论文集239-240（2000）。

Takeshi NAKAMOTO, Katsumi YAMAGUCHI and Teruhisa WATANABE: "TiB_2 Layer Prepared by YAG Laser Processing"Japan Society of Mechanical Engineers, Tokai Blanch Proceedings. No.003-1. 239-240 (2000)

Takeshi NAKAMOTO、Katsumi YAMAGUCHI 和 Teruhisa WATANABE：“通过 YAG 激光加工制备 TiB_2 层”日本机械工程师学会，Tokai Blanch 论文集。