文章信息/Info

Title:

Research Progress in Ultra-high Temperature Oxide Eutectic Composite Ceramics

作者:

蘇海軍; 王恩緣; 任 群; 張 軍; 劉 林; 傅恒志

(西北工業(yè)大學(xué)凝固技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室，陜西 西安 710072)

Author(s):

SU Haijun;  WANG Enyuan;  REN Qun;  ZHANG Jun;  LIU Lin;  FU Hengzhi

(State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, China)

關(guān)鍵詞:

氧化物共晶陶瓷; 生長(zhǎng)特征; 凝固組織; 力學(xué)性能; 晶體取向

Keywords:

oxide eutectic ceramic;  growth characteristics;  solidification microstructure;  mechanical properties;  orientation relationships

DOI:

10.7502/j.issn.1674-3962.2018.06.05

文獻(xiàn)標(biāo)志碼:

A

摘要:

超高溫氧化物共晶復(fù)合陶瓷具有優(yōu)異的力學(xué)性能、高溫組織穩(wěn)定性、抗氧化和抗腐蝕性能，被認(rèn)為是1400oC以上高溫 富氧環(huán)境長(zhǎng)時(shí)穩(wěn)定服役的理想高溫結(jié)構(gòu)材料，近年來(lái)受到世界各國(guó)學(xué)者的廣泛關(guān)注。本文系統(tǒng)介紹了氧化物共晶復(fù)合陶瓷的發(fā)展現(xiàn)狀，對(duì)近年來(lái)本領(lǐng)域取得的重要進(jìn)展進(jìn)行了總結(jié)和分析，同時(shí)結(jié)合作者在本領(lǐng)域的研究，重點(diǎn)闡述了超高溫度梯度定向凝固 氧化物共晶復(fù)合陶瓷的組織特征、凝固特性、以及晶體取向/結(jié)構(gòu)特征和力學(xué)性能，最后對(duì)氧化物共晶復(fù)合陶瓷今后的發(fā)展趨勢(shì)和突破點(diǎn)進(jìn)行了展望。

Abstract:

Oxide-based eutectic composite ceramics possess excellent mechanical properties, high-temperature microstructure stability, and superior oxidation resistance and corrosion resistance, which have been considered as the most promising candidates applied in high-temperature oxygen-enriched environment above 1400oC for long periods. This paper systematically reviews the important development of processing, microstructures and properties of oxide-based eutectic composite ceramics in the past few years. Specially, the progress in eutectic ceramic microstructure characteristic, solidification behavior, crystal orientation relationships, mechanical properties and toughening method are highlighted. Lastly, the prospects and future developments in this field are proposed.