RAMAN-SPECTRUM OF ZIRCONIA-HAFNIA MIXED-CRYSTALS

被引：59

作者：

CARLONE, C ^{[1
]}

机构：

[1] UNIV SHERBROOKE,CTR RECH PHYS SOLIDE,SHERBROOKE J1K 2R1,QUEBEC,CANADA

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.45.2079

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Monoclinic crystals of Zr(x)Hf1-xO2 were grown by heating the layered structures Zr(x)Hf1-xS2 in a pure oxygen atmosphere at 800-degrees-C for 2 h (x = 0, 0.1, 0.25, 0.5, 0.75, 0.9, and 1.0). Their Raman spectra were recorded at 15 and 300 K. The 18 modes predicted by group theory were identified in ZrO2 and their evolution with x was determined. At 15 K, seven phonons show distinct two-mode behavior, while others are characterized by discontinuities, either at x = 0.6 or x = 0.3. This latter observation is reminiscent of percolation-type phenomena.

引用

页码：2079 / 2084

页数：6

共 13 条

[1] LATTICE-DYNAMICS AND LIGHT-SCATTERING IN HAFNIA AND ZIRCONIA [J].

ANASTASSAKIS, E ;

PAPANICOLAOU, B ;

ASHER, IM .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1975, 36 (7-8) :667-676

[2] RAMAN-SPECTROSCOPIC STUDIES OF THE POLYMORPHISM IN ZRO2 AT HIGH-PRESSURES [J].

ARASHI, H ;

ISHIGAME, M .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 1982, 71 (02) :313-321

[3]

CARLONE C, 1989, 11TH P AIRAPT INT C, V2, P348

[4] LINEWIDTHS FROM SUM-RULES IN MIXED-CRYSTALS [J].

CASTILLO, JML ;

TREMBLAY, AMS .

PHYSICAL REVIEW B, 1986, 34 (12) :8482-8485

[5]

Ignat'ev B. V., 1980, Soviet Physics - Solid State, V22, P890

[6]

ISHAGAME M, 1977, J AM CERAM SOC, V60, P367

[7] VIBRATIONAL-SPECTRA OF HFO2-ZRO2 SOLID-SOLUTIONS [J].

KREBS, MA ;

CONDRATE, RA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1982, 65 (09) :C144-C145

[8] THE CRYSTAL STRUCTURE OF BADDELEYITE (MONOCLINIC ZRO2) [J].

MCCULLOUGH, JD ;

TRUEBLOOD, KN .

ACTA CRYSTALLOGRAPHICA, 1959, 12 (07) :507-511

[9]

Ming L.C., 1985, SOLID STATE PHYS, P135

[10] EFFECT OF METAL SUBSTITUTION IN ZRSE3-TYPE COMPOUNDS - VIBRATIONAL-STATES OF ZR1-THFTS3 [J].

NOUVEL, G ;

ZWICK, A ;

RENUCCI, MA ;

KJEKSHUS, A .

PHYSICAL REVIEW B, 1985, 32 (02) :1165-1171

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