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碳化硅表面環(huán)境障陶瓷材料
碳化硅纖維增強(qiáng)復(fù)合材料具有抗熱震、抗蠕變、耐燒蝕、耐磨損等優(yōu)點(diǎn),同時(shí)其極高的高溫?zé)釋?dǎo)率可以快速將前緣高溫區(qū)熱量向低溫區(qū)傳遞,并具有高模量、高強(qiáng)度特點(diǎn)。從上世紀(jì)60年代起,碳化硅高溫復(fù)合材料便在軍工方面得到了重視,目前已廣泛應(yīng)用于航空飛機(jī)的端頭帽和機(jī)翼前緣的熱防護(hù)系統(tǒng)、洲際導(dǎo)彈端頭和鼻錐等部件,這些部件一般都在高溫和有氧的惡劣工況環(huán)境下工作,對(duì)抗氧化,抗沖刷性能提出了比火箭發(fā)動(dòng)機(jī)更高的要求。
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產(chǎn)品描述
產(chǎn)品名稱:碳化硅表面環(huán)境障陶瓷材料
產(chǎn)品型號(hào):AQⅠ-Ⅲ
產(chǎn)品簡(jiǎn)介:碳化硅纖維增強(qiáng)復(fù)合材料具有抗熱震、抗蠕變、耐燒蝕、耐磨損等優(yōu)點(diǎn),同時(shí)其極高的高溫?zé)釋?dǎo)率可以快速將前緣高溫區(qū)熱量向低溫區(qū)傳遞,并具有高模量、高強(qiáng)度特點(diǎn)。從上世紀(jì)60年代起,碳化硅高溫復(fù)合材料便在軍工方面得到了重視,目前已廣泛應(yīng)用于航空飛機(jī)的端頭帽和機(jī)翼前緣的熱防護(hù)系統(tǒng)、洲際導(dǎo)彈端頭和鼻錐等部件,這些部件一般都在高溫和有氧的惡劣工況環(huán)境下工作,對(duì)抗氧化,抗沖刷性能提出了比火箭發(fā)動(dòng)機(jī)更高的要求。
為保護(hù)碳化硅纖維增強(qiáng)復(fù)合材料在高溫、腐蝕介質(zhì)、燃?xì)鉀_刷、復(fù)雜應(yīng)力的作用下穩(wěn)定存在,安權(quán)霄防科研團(tuán)隊(duì)將自主研制的稀土鉭酸鹽環(huán)境障材料通過熱噴涂和氣相沉積的方式緊密結(jié)合在復(fù)合材料服役表面,極大的延長(zhǎng)了陶瓷纖維增強(qiáng)復(fù)合材料在復(fù)雜高溫環(huán)境中的使用壽命,有望成為航天航空、石油化工、海洋船舶等領(lǐng)域新型關(guān)鍵材料。
Product Name: Silicon Carbide Surface Environmental Barrier Ceramic Material
Product Model:AQⅠ-Ⅲ
Description:Silicon carbide fibre reinforced composites have the advantages of thermal shock resistance, creep resistance, abrasion resistance, wear resistance, etc. At the same time, its extremely high high temperature thermal conductivity can quickly transfer the heat from the high temperature zone of the leading edge to the low temperature zone, and it has high modulus and high strength characteristics. From the 1960s, silicon carbide high-temperature composites have been valued in the military industry, and have been widely used in the thermal protection system of the end cap and wing leading edge of the aircraft, the end and nose cone of intercontinental missiles and other components, which are generally working in the harsh working conditions of high temperature and oxygen, and put forward higher requirements for oxidation resistance and anti-washout performance than that of the rocket engine.
In order to protect the silicon carbide fibre reinforced composites in high temperature, corrosive media, gas scouring, the role of complex stress stability, Anquan Xiao-defensive scientific research team will be self-developed rare-earth tantalumate environmental barrier materials through thermal spraying and gas phase deposition of the way close to the surface of the composite material service, greatly extending the service life of the ceramic fibre reinforced composites in complex high temperature environments, and is expected to become a new key material in the fields of aerospace , petrochemical, marine ships and other fields of new key materials.
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