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Metal/ceramic wave-absorbing composite material and preparation method thereof
The invention belongs to the technical field of wave-absorbing stealth materials, and particularly relates to a metal/ceramic wave-absorbing composite material and a preparation method thereof. The metal/ceramic wave-absorbing composite material is formed by compounding a metal net and a ceramic matrix, and the ceramic matrix is formed by pressing ceramic powder into a green body and sintering the green body in air at 750-800 DEG C for 20-30 min. When the green body is pressed, the metal net is pre-buried in the green body, and the metal net and the ceramic base body are firmly compounded together after sintering. The preparation method has the remarkable advantages of being simple in process, low in manufacturing cost and high in finished product rate, and the prepared metal/ceramic wave-absorbing composite material has excellent comprehensive performance and is an ideal interference type structure wave-absorbing material. Compared with a resin-based wave-absorbing material, the metal/ceramic wave-absorbing composite material has excellent high temperature resistance and aging resistance, and can be used for a long time at 650 DEG C without performance degradation.
本发明属于吸波隐身材料技术领域，尤其涉及一种金属/陶瓷吸波复合材料及其制备方法。该金属/陶瓷吸波复合材料由金属网与陶瓷基体复合而成，其中，陶瓷基体是将陶瓷粉料压制成坯体在750～800℃空气中烧结20～30min而成。压制坯体时，将金属网预埋至坯体中，烧结后金属网与陶瓷基体牢固的复合在一起。本发明所述制备方法具有工艺简单，制造成本低，制品的成品率高的显著优点，所制备的金属/陶瓷吸波复合材料具有优异的综合性能，是一种理想的干涉型结构吸波材料。相较于树脂基吸波材料，该金属/陶瓷吸波复合材料具有优异的耐高温和抗老化性能，可在650℃长时间使用而不发生性能衰减。
Metal/ceramic wave-absorbing composite material and preparation method thereof
The invention belongs to the technical field of wave-absorbing stealth materials, and particularly relates to a metal/ceramic wave-absorbing composite material and a preparation method thereof. The metal/ceramic wave-absorbing composite material is formed by compounding a metal net and a ceramic matrix, and the ceramic matrix is formed by pressing ceramic powder into a green body and sintering the green body in air at 750-800 DEG C for 20-30 min. When the green body is pressed, the metal net is pre-buried in the green body, and the metal net and the ceramic base body are firmly compounded together after sintering. The preparation method has the remarkable advantages of being simple in process, low in manufacturing cost and high in finished product rate, and the prepared metal/ceramic wave-absorbing composite material has excellent comprehensive performance and is an ideal interference type structure wave-absorbing material. Compared with a resin-based wave-absorbing material, the metal/ceramic wave-absorbing composite material has excellent high temperature resistance and aging resistance, and can be used for a long time at 650 DEG C without performance degradation.
本发明属于吸波隐身材料技术领域，尤其涉及一种金属/陶瓷吸波复合材料及其制备方法。该金属/陶瓷吸波复合材料由金属网与陶瓷基体复合而成，其中，陶瓷基体是将陶瓷粉料压制成坯体在750～800℃空气中烧结20～30min而成。压制坯体时，将金属网预埋至坯体中，烧结后金属网与陶瓷基体牢固的复合在一起。本发明所述制备方法具有工艺简单，制造成本低，制品的成品率高的显著优点，所制备的金属/陶瓷吸波复合材料具有优异的综合性能，是一种理想的干涉型结构吸波材料。相较于树脂基吸波材料，该金属/陶瓷吸波复合材料具有优异的耐高温和抗老化性能，可在650℃长时间使用而不发生性能衰减。
Metal/ceramic wave-absorbing composite material and preparation method thereof
一种金属/陶瓷吸波复合材料及其制备方法
LI XIANGMING (author) / LYU CUICUI (author) / YU WANJUN (author) / LIU YINGXIA (author)
2022-05-10
Patent
Electronic Resource
Chinese
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