Reactive YAG Laser Sintering of Gradient Functional Film Made of Hard Boron Carbide

硬质碳化硼梯度功能薄膜的反应YAG激光烧结

• 批准号: 09650135
• 负责人: NAKAMOTO Takeshi
• 金额: $ 2.18万
• 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: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650135/
• 关键词: Boron carbide; YAG Laser; Laser sintering; X-ray diffraction; Producing film; Hardness of the film; Micromachining; Beam scanning; X線回析

This research work deals with reactive Laser sintering of boron carbide (B_4C) on a substrate from mixture of graphite and boron powder. The boron carbide (B_4C) is a hard material, therefore, it is expected to apply for polishing powder However, it is difficult to sinter, the material is not used sufficiently. It is expected to become adhesion between the boron carbide and the substrate and expected to produce gradient functional film by the heat of the Laser on the present work.At first, the mixture of the graphite and boron powder is irradiated by the YAG Laser beam. And the sintered material is analyzed by X-ray diffraction. Boron carbide (B_4C) is composed by this method. Next, the mixture is spread on the substrate, and the YAG Laser beam is scanning on the substrate. The hardness of the boron carbide film is 16 GPa. At last, this method is applied for the producing high aspect ratio micro parts made of boron carbide. The hardness of the film is expected to increase by composing by other ceramics.

本文研究了以石墨和硼粉为基体的碳化硼（B_4C）的反应激光烧结。碳化硼（B_4C）是一种硬质材料，有望应用于抛光粉，但烧结困难，利用率不高。本工作利用激光的热作用，使碳化硼与基体形成粘附，并在基体上形成梯度功能薄膜。首先，用YAG激光照射石墨和硼粉的混合物。并对烧结材料进行了X射线衍射分析。用这种方法合成了碳化硼（B_4C）。接下来，将混合物铺展在基材上，并且YAG激光束在基材上扫描。碳化硼薄膜的硬度为16 GPa。最后，将该方法应用于大长径比微型碳化硼零件的制造。通过与其它陶瓷复合，有望提高膜的硬度。

项目成果

中本剛: "YAGレーザーによるB_4Cの合成と造形への応用" 日本機械学会東海支部第47期総会講演会講演論文集. 315-316 (1998)

Tsuyoshi Nakamoto：“使用 YAG 激光合成 B_4C 及其在建模中的应用”日本机械工程师学会东海分会第 47 届大会论文集 315-316（1998）。

中本 剛: "YAGレーザーによるB_4Cの合成と造形への応用" 日本機械学会東海支部第47期総会講演会講演論文集. 315-316 (1998)

Tsuyoshi Nakamoto：“使用 YAG 激光合成 B_4C 及其在建模中的应用”日本机械工程师学会东海分会第 47 届大会论文集 315-316（1998）。

Takeshi NAKAMOTO,Katsumi YAMAGUCHI and Satoru SUGIURA: "Reactive YAG Laser Sintering of B_4C and Application to Manufacturing" Japan society of Mechanical Engineers, Tokai Blanch Proceedings. No.983-1. 315-316 (1998)

Takeshi NAKAMOTO、Katsumi YAMAGUCHI 和 Satoru SUGIURA：“B_4C 的反应 YAG 激光烧结及其在制造中的应用”日本机械工程师学会，Tokai Blanch 论文集。