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Article including silicon carbide and method of manufacturing same

A manufacturing method and technology of silicon carbide, applied in the field of material products, can solve problems such as low strength

Active Publication Date: 2020-07-07
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, although the strength of the molded body is not disclosed, it is presumed that a molded body in which the powders are partially bonded to each other and has low strength can be formed

Method used

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  • Article including silicon carbide and method of manufacturing same
  • Article including silicon carbide and method of manufacturing same
  • Article including silicon carbide and method of manufacturing same

Examples

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Embodiment

[0042] The present disclosure is described in more detail below through Examples and Comparative Examples. The present disclosure is by no means limited to the following examples without departing from the gist of the present disclosure.

[0043] (powder 1)

[0044] A silicon carbide powder (manufactured by Pacific Rundum Co., Ltd., product name: NC#800) having a median particle diameter of 14.7 μm was prepared as silicon carbide. Chromium diboride powder having a melting point of 2,200° C. (manufactured by Japan New Metals Co., Ltd., product name: CrB2-O, median particle diameter: about 5 μm) was prepared as chromium boride to be mixed. Those powders were blended at a molar ratio of silicon carbide:chromium diboride=7:3 to obtain powders having a composition in which eutectic crystals or hypoeutectic crystals were produced, and were mixed using a ball mill to obtain Powder 1. The manner of determining the molar ratio and the manner of mixing powders are also the same for ot...

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Abstract

Provided is an article that includes silicon carbide as a main component and that has sufficient mechanical strength while manufactured by a three-dimensional shaping technology. The article that includes silicon carbide as a main component includes: silicon carbide; a metal boride having a melting point lower than a sublimation point of silicon carbide; and metal silicon.

Description

technical field [0001] The present disclosure relates to articles using silicon carbide-based materials having material characteristics such as high heat resistance, high thermal conductivity, light weight, and high rigidity, and more particularly to products and methods of their manufacture. Background technique [0002] In order to manufacture various metal parts in small quantities or to manufacture metal parts with complex shapes, three-dimensional forming technology using powder bed fusion has been developed. For multiple layers, this technique involves repeating the steps of locally melting / solidifying the modeling material by scanning the powder layer of the modeling material with an energy beam based on slice data generated from the three-dimensional shape data of the object to be formed, thereby forming a three-dimensional object. A laser beam, an electron beam, or the like is used as the energy beam. [0003] In addition, in recent years, research has been condu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/58C04B35/622C04B35/65
CPCC04B35/565C04B35/58064C04B35/58071C04B35/58078C04B35/622C04B35/65C04B2235/616C04B2235/6026B33Y80/00C22C29/00C22C29/14B33Y10/00C22C29/005C04B2235/3804C04B2235/428C04B2235/3813C04B2235/77C04B35/653C04B2235/5436Y02P10/25B22F3/105B22F2302/105B22F2302/05B22F3/26
Inventor 木谷耕治沖仲元毅三木勉
Owner CANON KK