Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
POROUS SILICON CARBIDE COMPOSITE AND SILICON CARBIDE HEATER
To provide a porous silicon carbide composite that can be subjected to practical use as a terminal or the like of a silicon carbide heater and that has sufficiently reduced electric resistivity and electric conductivity.SOLUTION: A porous silicon carbide composite comprises multiple hollow particles composed of a skin material containing silicon carbide as a main component and in which porosity formed between the hollow particles is further impregnated with silicon. The porous silicon carbide composite has an electric resistivity of 5×10Ω cm or less and an electric conductivity at room temperature of 110 W/(m K) or less. Preferably, the hollow particles have an average diameter of 0.1 to 2.0 mm, and a roundness represented by an average value of short diameter/long diameter of the hollow particles is 0.75 to 1.00.SELECTED DRAWING: Figure 3
【課題】炭化珪素ヒーターのターミナル等として実用に供し得る、電気抵抗率および熱伝導率が十分に低減された多孔質炭化珪素複合材を提供する。【解決手段】炭化珪素を主成分として含む表皮材からなる中空状粒子を複数含有するとともに、前記中空状粒子間に形成される空隙にさらに珪素が含浸されてなり、電気比抵抗が５×１０−３Ω・ｃｍ以下でありかつ室温での熱伝導率が１１０Ｗ／（ｍ・Ｋ）以下である多孔質炭化珪素複合材であり、好ましくは、前記中空状粒子の平均直径が０．１〜２．０ｍｍであり、前記中空状粒子の短径／長径の平均値で表される真円度が０．７５〜１．００である多孔質炭化珪素複合材。【選択図】図３
POROUS SILICON CARBIDE COMPOSITE AND SILICON CARBIDE HEATER
To provide a porous silicon carbide composite that can be subjected to practical use as a terminal or the like of a silicon carbide heater and that has sufficiently reduced electric resistivity and electric conductivity.SOLUTION: A porous silicon carbide composite comprises multiple hollow particles composed of a skin material containing silicon carbide as a main component and in which porosity formed between the hollow particles is further impregnated with silicon. The porous silicon carbide composite has an electric resistivity of 5×10Ω cm or less and an electric conductivity at room temperature of 110 W/(m K) or less. Preferably, the hollow particles have an average diameter of 0.1 to 2.0 mm, and a roundness represented by an average value of short diameter/long diameter of the hollow particles is 0.75 to 1.00.SELECTED DRAWING: Figure 3
【課題】炭化珪素ヒーターのターミナル等として実用に供し得る、電気抵抗率および熱伝導率が十分に低減された多孔質炭化珪素複合材を提供する。【解決手段】炭化珪素を主成分として含む表皮材からなる中空状粒子を複数含有するとともに、前記中空状粒子間に形成される空隙にさらに珪素が含浸されてなり、電気比抵抗が５×１０−３Ω・ｃｍ以下でありかつ室温での熱伝導率が１１０Ｗ／（ｍ・Ｋ）以下である多孔質炭化珪素複合材であり、好ましくは、前記中空状粒子の平均直径が０．１〜２．０ｍｍであり、前記中空状粒子の短径／長径の平均値で表される真円度が０．７５〜１．００である多孔質炭化珪素複合材。【選択図】図３
POROUS SILICON CARBIDE COMPOSITE AND SILICON CARBIDE HEATER
多孔質炭化珪素複合材および炭化珪素ヒーター
KATO HIROYUKI (Autor:in) / ONO TOSHITERU (Autor:in)
27.12.2018
Patent
Elektronische Ressource
Japanisch
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