Development of high thermal conductivity carbon composite materials at higher temperatures

高温高导热碳复合材料的开发

• 批准号: 04555181
• 负责人: OKU Tatsuo
• 金额: $ 5.63万
• 依托单位: Ibaraki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04555181/
• 关键词: carbon material; composite material; fusion reactor; plasma facing material; thermal conductivity; mechanical properties; metal impregnation; arc heating test; 炭素複合材料; 高温熱処理; 加圧黒鉛化; 炭素; 金属の界面; C; Cコンポジット; エロージョン; 力学的性質; 微細構造; 炭素繊維; マトリッ

The developmental research on carbon-carbon composite materials with high thermal conductivity at high temperatures has been performed for the purpose of improving erosion properties at high temperatures as plasma facing component materials for fusion reactors. It was confirmed that the thermal conductivity of carbon materials increased due to heat treatment at higher temperatures than graphitization temperature and due to pressurized graphitization. Copper and silver which do not react with carbon at higher temperatures and have higher thermal conductivity were impregnated to fine-grained isotropic graphites (IG-430U and IG-43SU,non-impregnated IG-43) and a felt type carbon-carbon composite (CX-2002U) and six kind of composite materials have been produced on trial. As a result, the thermal conductivity of manufactured materials increased at higher temperatures as expectedly and the temperature dependence of thermal conductivity decreased. However, there was a material whose conductivity was smaller than that of the stating material. In order to improve it a small amount of titanium was impregnated to the composite materials (carbon/Cu/Ti) to make a better contact between carbon and copper. Consequently, the predicted results were obtained. It was made clear that the thermal conductive properties could be predicted from the mechanical properties by using the correlation of thermal conductivity with mechanical properties.

为了提高碳-碳复合材料在高温下的耐蚀性能，开展了高温高导热碳-碳复合材料作为聚变反应堆等离子体组件材料的开发研究。证实了在高于石墨化温度的温度下进行热处理和加压石墨化可以提高碳材料的导热系数。将高温下不与碳发生反应、导热系数较高的铜和银浸渍在细晶各向同性石墨（IG-430U和IG-43SU，未浸渍的IG-43）和毡型碳碳复合材料（CX-2002U）上，试制了6种复合材料。结果表明，在较高的温度下，制备的材料的导热系数如预期的那样增加，导热系数的温度依赖性降低。然而，有一种材料的电导率比陈述材料小。为了改善其性能，在复合材料（碳/Cu/Ti）中浸渍少量的钛，使碳与铜之间有更好的接触。因此，得到了预测结果。利用导热系数与力学性能的相关性，可以从力学性能中预测导热性能。

项目成果

奥達雄、車田亮、星野高志、平岡利治、黒田浩二: "炭素系複合材料の熱伝導性と力学特性" 茨城大学工学部研究集報. 42. 21-26 (1994)

Tatsuo Oku、Ryo Kurumada、Takashi Hoshino、Toshiharu Hiraoka、Koji Kuroda：“碳基复合材料的导热性和机械性能”茨城大学工学部研究通报42. 21-26 (1994)。

奥,車田,佐々木,平岡,黒田: "金属含浸炭素材料における熱伝導性の温度依存性" 日本機械学会茨城講演会講演論文集. 92-93 (1994)

Oku、Kurumada、Sasaki、Hiraoka、Kuroda：“金属浸渍碳材料中热导率的温度依赖性”日本机械工程师学会茨城会议记录 92-93 (1994)。

T.Oku, T.Hoshino, T.Hiraoka: "Examination of evaluation method mechanical properties of carbon materials by dynamic hardness test" J.Faculty of Eng., Ibaraki Univ.42. 13-20 (1994)

T.Oku，T.Hoshino，T.Hiraoka：“通过动态硬度测试评估碳材料机械性能的方法检查”J.Faculty of Eng.，Ibaraki Univ.42。

T.D.Burchell, T.Oku: Atomic and plasma-materials interaction data for fusion, "Materials properties data for fusion reactor plasma facing carbon-carbon composites". I.A.E.A, 52 (1995)

T.D.Burchell、T.Oku：聚变的原子和等离子体材料相互作用数据，“聚变反应堆等离子体面向碳-碳复合材料的材料特性数据”。

奥達雄、星野高志、平岡利治: "炭素材料の力学特性のかたさ試験による評価法の検討" 茨城大学工学部研究集報. 42. 13-20 (1994)

Tatsuo Oku、Takashi Hoshino、Toshiharu Hiraoka：“利用硬度测试评估碳材料机械性能的方法的研究”茨城大学工学部研究通报42. 13-20 (1994)。