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復(fù)合鈣鈦礦型Ba(Zn1/3Ta2/3)O3陶瓷作為熱障涂層陶瓷層材料的性能評(píng)價(jià)
作者:
作者單位:

1.太原理工大學(xué) 航空航天學(xué)院;2.河鋼集團(tuán)有限公司;3.航天科工空間工程發(fā)展有限公司;4.北京理工大學(xué) 材料學(xué)院;5.武漢紡織大學(xué) 紡織新材料與先進(jìn)加工技術(shù)國家重點(diǎn)實(shí)驗(yàn)室

作者簡介:

通訊作者:

中圖分類號(hào):

TG174.453

基金項(xiàng)目:

國家自然科學(xué)基金項(xiàng)目； 山西省基礎(chǔ)研究計(jì)劃青年基金項(xiàng)目


Performance evaluation of composite perovskite Ba(Zn1/3Ta2/3)O3 ceramic as ceramic coating material for thermal barrier coatings
Author:
Affiliation:

1.College of Aeronautics and Astronautics, Taiyuan University of Technology;2.HBIS Group Co., Ltd.;3.CASIC Space Engineer Development Co., Ltd.;4.School of Materials Science and Engineering, Beijing Institute of Technology;5.State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University

Fund Project:

The National Natural Science Foundation of China；Youth Fund project of Basic Research Program of Shanxi Province

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    摘要:

    以BaCO3、ZnO、Ta2O5為原料，采用固相反應(yīng)法制備了Ba(Zn1/3Ta2/3)O3（BZT）陶瓷材料。對(duì)BZT的物相結(jié)構(gòu)、高溫相穩(wěn)定性、熱導(dǎo)率、熱膨脹系數(shù)和噴涂工藝適應(yīng)性進(jìn)行表征研究，并與同類Ba(Mg1/3Ta2/3)O3（BMT）、Ba(Ni1/3Ta2/3)O3（BNT）和Ba(Sr1/3Ta2/3)O3（BST）對(duì)比，以評(píng)價(jià)BZT作為熱障涂層陶瓷層材料的應(yīng)用潛力。結(jié)果表明，BZT在室溫至1500 oC內(nèi)無相變，且經(jīng)1600 oC長時(shí)處理48 h后不分解，表現(xiàn)出良好的高溫相穩(wěn)定性；在1200 oC，BZT的熱導(dǎo)率僅為1.65 W·m-1·K-1，明顯低于BMT（2.59 W·m-1·K-1），BNT（2.56 W·m-1·K-1）和BST（2.11 W·m-1·K-1），呈現(xiàn)出更好的高溫隔熱能力；同時(shí)，BZT在200~1400 oC內(nèi)的平均熱膨脹系數(shù)為11.3×10-6 K-1，高于BNT（10.7×10-6 K-1）和BST（8.1×10-6 K-1）；由等離子噴涂制備的BZT涂層物相為單一的鈣鈦礦結(jié)構(gòu)，所制備的YSZ/BZT雙陶瓷層涂層層間結(jié)合良好。綜合考慮，BZT陶瓷有望成為新型熱障涂層的候選材料。

    Abstract:

    Ba(Zn1/3Ta2/3)O3 (BZT) ceramic was synthesized by a solid-state reaction method using BaCO3, ZnO, and Ta2O5 powders as the raw materials. The phase structure, high-temperature phase stability, thermal conductivity, coefficient of thermal expansion, and adaptability of spraying process of BZT were investigated and characterized, and compared with Ba(Mg1/3Ta2/3)O3 (BMT), Ba(Ni1/3Ta2/3)O3 (BNT), and Ba(Sr1/3Ta2/3)O3 (BST) to evaluate the potential application of BZT as a top coating material for thermal barrier coatings. The results indicate that no phase transition occurred during the heating from room temperature to 1500 oC, and BZT was quite stable up to 1600 °C for 48 h, without the occurrence of decomposition, showing excellent high-temperature phase stability; The thermal conductivity of BZT was only 1.65 W·m-1·K-1 at 1200 oC, which is significantly lower than that of BMT (2.59 W·m-1·K-1), BNT (2.56 W·m-1·K-1) and BST (2.11 W·m-1·K-1), showing better high-temperature heat insulation ability; The average coefficient of thermal expansion of 11.3 × 10-6 k-1 for BZT from 200 to 1400 oC was higher than that of BNT (10.7 × 10-6 k-1) and BST (8.1 × 10-6 k-1); The plasma-sprayed BZT coating had single perovskite structure, and the adhesion between the layers was compact for YSZ/BZT double-ceramic-layer coatings. Therefore, BZT ceramic might be a promising candidate material for novel thermal barrier coatings.

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曹毓鵬,劉義,李文輝,張賀,寧先進(jìn),王全勝,李文斌.復(fù)合鈣鈦礦型Ba(Zn1/3Ta2/3)O3陶瓷作為熱障涂層陶瓷層材料的性能評(píng)價(jià)[J].稀有金屬材料與工程,2023,52(2):593~600.[Cao Yupeng, Liu Yi, Li Wenhui, Zhang He, Ning Xianjin, Wang Quansheng, Li Wenbin. Performance evaluation of composite perovskite Ba(Zn1/3Ta2/3)O3 ceramic as ceramic coating material for thermal barrier coatings[J]. Rare Metal Materials and Engineering,2023,52(2):593~600.]
DOI：10.12442/j. issn.1002-185X.20211154

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  • 收稿日期:2021-12-28
  • 最后修改日期:2022-03-21
  • 錄用日期:2022-03-25
  • 在線發(fā)布日期: 2023-03-09
  • 出版日期: 2023-02-28