High temperature piezoelectric properties of yttrium calcium oxyborate single crystals

2010 ◽  
Vol 4 (5-6) ◽  
pp. 103-105 ◽  
Author(s):  
Fapeng Yu ◽  
Shujun Zhang ◽  
Xian Zhao ◽  
Duorong Yuan ◽  
Qingming Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystals ◽  
Piezoelectric Properties

Novel high-temperature ferroelectric single crystals 0.38Bi(Mg1/2Ti1/2)O3–0.62PbTiO3 with good and temperature-stable piezoelectric properties

CrystEngComm ◽  
2015 ◽  
Vol 17 (30) ◽  
pp. 5605-5608 ◽  
Author(s):  
Jinfeng Liu ◽  
Xiaxia Chen ◽  
Guisheng Xu ◽  
Danfeng Yang ◽  
Yanfeng Tian ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystals ◽  
Piezoelectric Properties ◽  
Flux Method

Novel 0.38BMT–0.62PbT single crystals with high Tc, as well as good and temperature-stable piezoelectric properties have been grown by a flux method.

scholarly journals Resistivity and piezoelectric properties of Ca3TaGa1.5Al1.5Si2O14 single crystals for high temperature sensors

RSC Advances ◽  
2017 ◽  
Vol 7 (89) ◽  
pp. 56697-56703 ◽  
Author(s):  
Xiuwei Fu ◽  
Encarnación G. Víllora ◽  
Yoshitaka Matsushita ◽  
Yuuki Kitanaka ◽  
Yuji Noguchi ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Single Crystals ◽  
Temperature Sensor ◽  
Piezoelectric Properties ◽  
Temperature Sensors ◽  
High Quality ◽  
Sensor Applications ◽  
High Temperature Sensor

A high quality CTGAS single crystal with excellent properties for high temperature sensor applications.

Precipitation of NiHfsi phase in NiAl single crystals containing Hf

1995 ◽  
Vol 53 ◽  
pp. 532-533
Author(s):  
A. Garg ◽  
R. D. Noebe ◽  
R. Darolia
Keyword(s):  
High Temperature ◽  
Single Crystals ◽  
High Temperature Strength ◽  
Bridgman Technique ◽  
Shell Mold ◽  
Third Phase ◽  
Unknown Phase ◽  
Transmission Electron ◽  
Two Phases ◽  
Nial Matrix

Small additions of Hf to NiAl produce a significant increase in the high-temperature strength of single crystals. Hf has a very limited solubility in NiAl and in the presence of Si, results in a high density of G-phase (Ni16Hf6Si7) cuboidal precipitates and some G-platelets in a NiAl matrix. These precipitates have a F.C.C structure and nucleate on {100}NiAl planes with almost perfect coherency and a cube-on-cube orientation-relationship (O.R.). However, G-phase is metastable and after prolonged aging at high temperature dissolves at the expense of a more stable Heusler (β'-Ni2AlHf) phase. In addition to these two phases, a third phase was shown to be present in a NiAl-0.3at. % Hf alloy, but was not previously identified (Fig. 4 of ref. 2 ). In this work, we report the morphology, crystal-structure, O.R., and stability of this unknown phase, which were determined using conventional and analytical transmission electron microscopy (TEM).Single crystals of NiAl containing 0.5at. % Hf were grown by a Bridgman technique. Chemical analysis indicated that these crystals also contained Si, which was not an intentional alloying addition but was picked up from the shell mold during directional solidification.

Growth and Piezoelectric Properties of Large Size Ca3TaGa3Si2O14 Crystals

CrystEngComm ◽  
2021 ◽  
Author(s):  
Kainan Xiong ◽  
Sheng wang ◽  
Xiaoniu Tu ◽  
Zhen-Yong Man ◽  
Yanqing Zheng ◽  
...  
Keyword(s):  
High Temperature ◽  
Piezoelectric Material ◽  
Piezoelectric Properties ◽  
Czochralski Method ◽  
Large Size

Ca3TaGa3Si2O14 (CTGS) crystal is an excellent high temperature piezoelectric material. 4~6 inches CTGS crystals were successfully grown by Czochralski method. The (110), (100) and (001) faces were strongly exposed, respectively....

Large-sized crystal growth and piezoelectric properties of the single crystals of LiNa5Mo9O30

CrystEngComm ◽  
2021 ◽  
Vol 23 (9) ◽  
pp. 1912-1917
Author(s):  
Xiaoli Du ◽  
Fuan Liu ◽  
Zeliang Gao ◽  
Xiaojie Guo ◽  
Xiangmei Wang ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Crystal Growth ◽  
Single Crystals ◽  
Piezoelectric Properties ◽  
First Time ◽  
Octahedral Distortion

Single crystals of LiNa5Mo9O30 with seeds in the a-, b- and c-directions were successfully grown using the TSSG method. Full sets of dielectric, elastic and piezoelectric matrices of the crystal were determined first time. The octahedral distortion and dipole moment are calculated to explain the piezoelectric properties.

The effect of high-temperature and high-stress martensite aging on martensitic transformation and microstructure of Ti–51.5 at % Ni single crystals

2020 ◽  
Author(s):  
E. E. Timofeeva ◽  
E. Yu. Panchenko ◽  
A. S. Eftifeeva ◽  
E. I. Yanushonite ◽  
M. V. Zherdeva ◽  
...  
Keyword(s):  
High Temperature ◽  
Martensitic Transformation ◽  
Single Crystals ◽  
High Stress

scholarly journals Growth of single crystals in the (Na1/2Bi1/2)TiO3–(Sr1–xCax)TiO3 system by solid state crystal growth

2021 ◽  
Author(s):  
Phan Gia Le ◽  
Huyen Tran Tran ◽  
Jong-Sook Lee ◽  
John G. Fisher ◽  
Hwang-Pill Kim ◽  
...  
Keyword(s):  
Crystal Growth ◽  
Solid State ◽  
Single Crystal ◽  
Single Crystals ◽  
Piezoelectric Properties ◽  
Single Crystal Growth ◽  
Crystal Growth Rate ◽  
Large Strains ◽  
Growth Technique ◽  
The Matrix

AbstractCeramics based on (Na1/2B1/2)TiO3 are promising candidates for actuator applications because of large strains generated by an electric field-induced phase transition. For example, the (1−x)(Na1/2Bi1/2)TiO3-xSrTiO3 system exhibits a morphotropic phase boundary at x = 0.2–0.3, leading to high values of inverse piezoelectric constant d*33, which can be further improved by the use of single crystals. In our previous work, single crystals of (Na1/2B1/2)TiO3-SrTiO3 and (Na1/2B1/2)TiO3-CaTiO3 were grown by the solid state crystal growth technique. Growth in the (Na1/2B1/2)TiO3-SrTiO3 system was sluggish whereas the (Na1/2B1/2)TiO3-CaTiO3 single crystals grew well. In the present work, 0.8(Na1/2Bi1/2)TiO3-0.2(Sr1−xCax)TiO3 single crystals (with x = 0.0, 0.1, 0.2, 0.3, 0.4) were produced by the solid state crystal growth technique in an attempt to improve crystal growth rate. The dependence of mean matrix grain size, single crystal growth distance, and electrical properties on the Ca concentration was investigated in detail. These investigations indicated that at x = 0.3 the matrix grain growth was suppressed and the driving force for single crystal growth was enhanced. Replacing Sr with Ca increased the shoulder temperature Ts and temperature of maximum relative permittivity Tmax, causing a decrease in inverse piezoelectric properties and a change from normal to incipient ferroelectric behavior.

Growth of Large-Scale Silver Lithium Niobate Single Crystals and Their Piezoelectric Properties

2006 ◽  
Vol 45 (9B) ◽  
pp. 7389-7396 ◽  
Author(s):  
Satoshi Wada ◽  
Akiko Saito ◽  
Takuya Hoshina ◽  
Hirofumi Kakemoto ◽  
Takaaki Tsurumi ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Single Crystals ◽  
Large Scale ◽  
Piezoelectric Properties

Magnetic and superconducting properties of single crystals of Sr2HoRu1−xCuxO6 grown from high temperature solutions

2006 ◽  
Vol 89 (23) ◽  
pp. 232509 ◽  
Author(s):  
S. M. Rao ◽  
K. J. Wang ◽  
N. Y. Yen ◽  
Y. Y. Chen ◽  
C. B. Tsai ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystals ◽  
Superconducting Properties
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