Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HfCxNy ultrahigh-temperature ceramic powder material and preparation method thereof
The invention relates to the field of ultrahigh-temperature ceramic materials, in particular to an HfCxNy ultrahigh-temperature ceramic powder material and a preparation method thereof, wherein the sum of x and y is more than 0 and less than and equal to 1. The material is prepared by induction heating pressureless sintering, the preparation method includes: (1) adding Hf, C and HfN powder into anylon tank according to the proportion, adopting absolute ethyl alcohol as a medium and conducting wet milling to obtain powder paste; (2) performing rotary evaporation of the powder paste and dryingand screening to obatin Hf-C-HfN mixing powder, and conducting cold press molding in a stainless steel mould; and (3) placing the formed blank into a graphite crucible and puting the formed blank withthe graphite crucible into an ultrahigh-temperature induction heater, perfroming pressureless sintering under nitrogen atmosphere to obtain HfCxNy ultrahigh-temperature ceramic. The HfCxNy superhigh-temperature material prepared by the method has the advantages of high purity, simple preparation process flow, short preparation period and the like.
本发明涉及超高温陶瓷材料领域，具体为一种HfCxNy超高温陶瓷粉体材料及其制备方法，其中0
HfCxNy ultrahigh-temperature ceramic powder material and preparation method thereof
The invention relates to the field of ultrahigh-temperature ceramic materials, in particular to an HfCxNy ultrahigh-temperature ceramic powder material and a preparation method thereof, wherein the sum of x and y is more than 0 and less than and equal to 1. The material is prepared by induction heating pressureless sintering, the preparation method includes: (1) adding Hf, C and HfN powder into anylon tank according to the proportion, adopting absolute ethyl alcohol as a medium and conducting wet milling to obtain powder paste; (2) performing rotary evaporation of the powder paste and dryingand screening to obatin Hf-C-HfN mixing powder, and conducting cold press molding in a stainless steel mould; and (3) placing the formed blank into a graphite crucible and puting the formed blank withthe graphite crucible into an ultrahigh-temperature induction heater, perfroming pressureless sintering under nitrogen atmosphere to obtain HfCxNy ultrahigh-temperature ceramic. The HfCxNy superhigh-temperature material prepared by the method has the advantages of high purity, simple preparation process flow, short preparation period and the like.
本发明涉及超高温陶瓷材料领域，具体为一种HfCxNy超高温陶瓷粉体材料及其制备方法，其中0
HfCxNy ultrahigh-temperature ceramic powder material and preparation method thereof
一种HfCxNy超高温陶瓷粉体材料及其制备方法
XU JINGJUN (Autor:in) / ZHANG XINTAO (Autor:in) / QIAN YUHAI (Autor:in) / LI MEISHUAN (Autor:in) / ZUO JUN (Autor:in)
12.02.2021
Patent
Elektronische Ressource
Chinesisch
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