热喷涂技术
熱噴塗技術
열분도기술
THERMAL SPRAY TECHNOLOGY
2011年
4期
28-35,41
,共9页
何箐%王世兴%詹华%屈轶%汪瑞军%王伟平
何箐%王世興%詹華%屈軼%汪瑞軍%王偉平
하정%왕세흥%첨화%굴질%왕서군%왕위평
稀土氧化物掺杂%涂层性能%高温相稳定性%高温抗烧结
稀土氧化物摻雜%塗層性能%高溫相穩定性%高溫抗燒結
희토양화물참잡%도층성능%고온상은정성%고온항소결
Rare earth oxide doped%Coating properties%High temperature phase stability%High temperature anti-sintering
使用化学共沉淀法合成了纳米Gd2O3-Yb2O3-Y2O3-ZrO(2GYYZO)粉末,并最终制备了超细晶团聚的多元稀土氧化物掺杂的GYYZO热喷涂粉末,系统的研究了材料及涂层的基本性能,重点研究了材料及涂层的高温稳定性,材料和涂层的高温相稳定性相对传统纳米8YSZ材料明显提高,对高温热处理过程中涂层孔隙收缩、晶粒长大及显微硬度变化规律进行了分析,随热处理时间的延长其变化趋势基本一致。
使用化學共沉澱法閤成瞭納米Gd2O3-Yb2O3-Y2O3-ZrO(2GYYZO)粉末,併最終製備瞭超細晶糰聚的多元稀土氧化物摻雜的GYYZO熱噴塗粉末,繫統的研究瞭材料及塗層的基本性能,重點研究瞭材料及塗層的高溫穩定性,材料和塗層的高溫相穩定性相對傳統納米8YSZ材料明顯提高,對高溫熱處理過程中塗層孔隙收縮、晶粒長大及顯微硬度變化規律進行瞭分析,隨熱處理時間的延長其變化趨勢基本一緻。
사용화학공침정법합성료납미Gd2O3-Yb2O3-Y2O3-ZrO(2GYYZO)분말,병최종제비료초세정단취적다원희토양화물참잡적GYYZO열분도분말,계통적연구료재료급도층적기본성능,중점연구료재료급도층적고온은정성,재료화도층적고온상은정성상대전통납미8YSZ재료명현제고,대고온열처리과정중도층공극수축、정립장대급현미경도변화규률진행료분석,수열처리시간적연장기변화추세기본일치。
Gd2O3-Yb2O3 co-doped nano Gd2O3-Yb2O3-Y2O3-ZrO2 (GYYZO) powder and super fine sprayed powder by co-precipitation and spray dried were prepared. The high temperature phase stability of GYYZO material and coating was enhanced by co-doped than the traditional nano 8YSZ, the trend of porosity, grain size and microhardness of the GYYZO coating under heat treatment 1200℃ of various time was the same, at the begin of heat treatment, the increase and decrease trend was more evidence.