Crystal Structure and Microstructure Variation of Nonstoichiometric Bi1±xFeO3±δ and Ti-doped BiFeO3 Ceramics under Various Sintering Conditions

In this investigation, ZrxY2−xVxMo3−xO12 (0 ≤ x ≤ 1.4) is developed and the effects of the substitutions of Zr4+/V5+ for Y3+/Mo6+ in Y2Mo3O12 on the hygroscopicity and thermal expansion property are investigated. For the smaller substitution content (x ≤ 0.5), their crystal structures remain orthorhombic, while there is crystal water still in the lattice. The linear coefficients of thermal expansions (CTEs), for x = 0.1, 0.3, 0.5, and 0.7, are about −4.30 × 10−6, −0.97 × 10−6, 0.85 × 10−6, and 0.77 × 10−6 K−1, respectively, from 476 to 773 K, which means that the linear CTE could be changed linearly with the substitution content of Zr4+/V5+ for Y3+/Mo6+ in Y2Mo3O12. As long as the substitution content reaches x = 1.3/1.4, almost no hygroscopicity and low thermal expansion from room temperature are obtained and are discussed in relation to the crystal structure and microstructure.

Download Full-text

X-ray study of langasite: composition, crystal structure and microstructure

Acta Crystallographica Section A Foundations of Crystallography ◽

10.1107/s0108767308080719 ◽

2008 ◽

Vol 64 (a1) ◽

pp. C600-C600

Author(s):

E.N. Domoroshchina ◽

G.M. Kuz'micheva ◽

E.A. Tuynina ◽

A.B. Dubovsky

Keyword(s):

Crystal Structure ◽

X Ray ◽

Structure And Microstructure

Download Full-text

Effects of Annealing Temperature on Crystal Structure and Microstructure of PZT Thin Films (52/48) Prepared by RF Magnetron Sputtering

Integrated Ferroelectrics ◽

10.1080/10584587.2021.1964296 ◽

2021 ◽

Vol 223 (1) ◽

pp. 173-184

Author(s):

Pakinee Thongrit ◽

Mati Horprathum ◽

Kamonpan Pengpat ◽

Patamas Bintachitt

Keyword(s):

Crystal Structure ◽

Thin Films ◽

Magnetron Sputtering ◽

Annealing Temperature ◽

Rf Magnetron Sputtering ◽

Pzt Thin Films ◽

Structure And Microstructure

Download Full-text

Crystal structure and microstructure of a cold worked TiNi alloy with unusual elastic behavior

Scripta Metallurgica ◽

10.1016/0036-9748(80)90319-1 ◽

1980 ◽

Vol 14 (8) ◽

pp. 911-914 ◽

Cited By ~ 24

Author(s):

T. Tadaki ◽

C.M. Wayman

Keyword(s):

Crystal Structure ◽

Elastic Behavior ◽

Tini Alloy ◽

Cold Worked ◽

Structure And Microstructure

Download Full-text

New Mixed Y0.5R0.5VO4 and RVO4:Bi Materials: Synthesis, Crystal Structure and Some Luminescence Properties

Inorganics ◽

10.3390/inorganics6030094 ◽

2018 ◽

Vol 6 (3) ◽

pp. 94 ◽

Cited By ~ 3

Author(s):

Leonid Vasylechko ◽

Andrii Tupys ◽

Vasyl Hreb ◽

Volodymyr Tsiumra ◽

Iryna Lutsiuk ◽

...

Keyword(s):

Crystal Structure ◽

Binary Systems ◽

Materials Synthesis ◽

Lattice Constants ◽

Cation Radius ◽

Photoluminescence Studies ◽

The Impact ◽

Structure And Microstructure ◽

Cell Volumes

The results are reported on a precise crystal structure and microstructure determination of new mixed YVO4-based orthovanadates of Y0.5R0.5VO4 (R = Sm, Tb, Dy, Ho, Tm, Yb, Lu) as well as some Bi3+-doped RVO4 (R = La, Gd, Y, Lu) nano- (submicro-) materials. The formation of continuous solid solutions in the YVO4–RVO4 pseudo-binary systems (R = Sm, Tb, Dy, Ho, Tm, Yb, Lu) has been proved. The lattice constants and unit cell volumes of the new mixed orthovanadates were analyzed as a function of R3+ cation radius. The impact of crystal structure parameters on the energy band gap of the materials was studied by means of photoluminescence studies of the Bi3+-doped compounds.

Download Full-text