Laser ablation condensation and transformation of baddeleyite-type related TiO2

被引：40

作者：

Chen, SY ^{[1
]}

Shen, PY

机构：

[1] I Shou Univ, Dept Mech Engn, Kaohsiung, Taiwan

[2] Natl Sun Yat Sen Univ, Inst Mat Sci & Engn, Kaohsiung, Taiwan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2004年 / 43卷 / 4A期

关键词：

TiO2; nanoparticles; laser ablation condensation; transformation twinning; martensitic transformation; TiO2 high-pressure phase;

D O I：

10.1143/JJAP.43.1519

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A high-pressure phase of TiO2 with a baddeleyite-type related structure has been synthesized via very rapid heating-cooling under energetic Nd-YAG laser pulse irradiation of the Ti target in oxygen ambient. Spherical nanoparticles transformed martensitically into baddeleyite-type and then alpha,-PbO2-type structures with accompanied transformation twinning, shearing and shape change into ellipsoid upon electron irradiation. The relatively large particles followed the same transformation path yet with alternative lattice correspondence and additional multiple deformation twinning of the baddeleyite type.

引用

收藏

页码：1519 / 1524

页数：6

相关论文

共 30 条

[1] Laser ablation condensation of α-PbO2-type TiO2 [J].

Chen, Shuei-Yuan ;

Shen, Pouyan .

Physical Review Letters, 2002, 89 (09) :961061-961064

[2] Presolar corundum and spinel in ordinary chondrites: Origins from AGB stars and a supernova [J].

Choi, BG ;

Huss, GR ;

Wasserburg, GJ ;

Gallino, R .

SCIENCE, 1998, 282 (5392) :1284-1289

[3]

Chrisey D. B., 1994, PULSED LASER DEPOSIT

[4] High-pressure structural phases of titanium dioxide [J].

Dewhurst, JK ;

Lowther, JE .

PHYSICAL REVIEW B, 1996, 54 (06) :R3673-R3675

[5] Experimental and theoretical identification of a new high-pressure TiO2 polymorph -: art. no. 275501 [J].

Dubrovinskaia, NA ;

Dubrovinsky, LS ;

Ahuja, R ;

Prokopenko, VB ;

Dmitriev, V ;

Weber, HP ;

Osorio-Guillen, JM ;

Johansson, B .

PHYSICAL REVIEW LETTERS, 2001, 87 (27) :275501-1

[6] Materials science - The hardest known oxide [J].

Dubrovinsky, LS ;

Dubrovinskaia, NA ;

Swamy, V ;

Muscat, J ;

Harrison, NM ;

Ahuja, R ;

Holm, B ;

Johansson, B .

NATURE, 2001, 410 (6829) :653-654

[7] An ultradense polymorph of rutile with seven-coordinated titanium from the Ries crater [J].

El Goresy, A ;

Chen, M ;

Dubrovinsky, L ;

Gillet, P ;

Graup, G .

SCIENCE, 2001, 293 (5534) :1467-1470

[8] DISLOCATIONS IN FLUORITE STRUCTURE [J].

EVANS, AG ;

PRATT, PL .

PHILOSOPHICAL MAGAZINE, 1969, 20 (168) :1213-&

[9] HIGH-TEMPERATURE PLASTIC-DEFORMATION OF Y2O3-STABILIZED ZRO2 SINGLE-CRYSTALS .1. THE ORIGIN OF THE YIELD DROP AND ASSOCIATED GLIDE POLYGONIZATION [J].

FRIES, E ;

GUIBERTEAU, F ;

DOMINGUEZRODRIGUEZ, A ;

CHEONG, DS ;

HEUER, AH .

PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES, 1989, 60 (01) :107-121

[10] CERAMIC STEEL [J].

GARVIE, RC ;

HANNINK, RH ;

PASCOE, RT .

NATURE, 1975, 258 (5537) :703-704