Yang, JI Nahm, S Yoon, SJ Park, HM Lee, HJ 2024-01-21T07:41:47Z 2024-01-21T07:41:47Z 2021-09-02 2004-01 0021-4922 https://pubs.kist.re.kr/handle/201004/137970 Ba(Zn1/3Ta2/3)O-3 (BZT) ceramic has 1 : 2 ordered hexagonal structure, but was destroyed with the addition of ZrO2. The 1 : 1 ordered cubic structure was developed when a large amount of ZrO2 was added. BZT has a porous and inhomogeneous microstructure with a Ba5Ta4O15 second phase. When ZrO2 was added, a new Ba0.5TaO3 second phase formed and grain growth occurred. Presence of liquid phase which is related to the Ba0.5TaO3 second phase could be responsible for the grain growth. Q value of BZT was greatly enhanced with the addition of ZrO2. The improvement of Q value can be explained by the increase of relative density and grain size. Especially, grain size is considered to be one of the crucial factors for the improvement of Q value of BZT ceramic. English JAPAN SOC APPLIED PHYSICS MICROSTRUCTURE Structural variation and microwave dielectric properties of ZrO2 added Ba(Zn1/3Ta2/3)O-3 ceramics Article 10.1143/JJAP.43.211 1 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, v.43, no.1, pp.211 - 214 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 43 1 211 214 scie scopus 000220092400047 2-s2.0-1842760503 Physics, Applied Physics Article MICROSTRUCTURE Ba(Zn1/3Ta2/3)O3 ZrO2 1 : 2 ordering Q value liquid phase