Determination of full matrix material constants of [111]c poled Mn doped 0.24Pb(In1/2Nb1/2)O3-0.46Pb (Mg1/3Nb2/3)O3-0.30PbTiO3 single-domain single crystal using one sample

2016 ◽  
Vol 120 (6) ◽  
pp. 064101 ◽  
Author(s):  
Shiyang Li ◽  
Limei Zheng ◽  
Jing Chen ◽  
Enwei Sun ◽  
Ming Yang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Matrix Material ◽  
Single Domain ◽  
Full Matrix ◽  
Material Constants ◽  
Mn Doped

Domain engineering and full matrix material constants of the [111]c-poled 0.63Pb(Mg1/3Nb2/3)-0.37PbTiO3 single crystal

CrystEngComm ◽  
2018 ◽  
Vol 20 (33) ◽  
pp. 4745-4751 ◽  
Author(s):  
Zhongyuan Yuan ◽  
Shijing Sang ◽  
Enwei Sun ◽  
Xudong Qi ◽  
Wei-Yi Chang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Piezoelectric Properties ◽  
Matrix Material ◽  
Domain Engineering ◽  
Full Matrix ◽  
Material Constants ◽  
P Domain

Domain engineering was performed on a [111]c-oriented tetragonal ferroelectric 0.63Pb(Mg1/3Nb2/3)-0.37PbTiO3 (PMN-0.37PT) single crystal in order to achieve better piezoelectric properties.

Temperature dependence of full matrix material constants of [001]c poled 0.71Pb(Mg1/3Nb2/3)O3-0.29PbTiO3 single crystal

2018 ◽  
Vol 123 (16) ◽  
pp. 164102 ◽  
Author(s):  
Shiyang Li ◽  
Enwei Sun ◽  
Liguo Tang ◽  
Limei Zheng ◽  
Ming Yang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Temperature Dependence ◽  
Matrix Material ◽  
Full Matrix ◽  
Material Constants

scholarly journals Determination of temperature dependence of full matrix material constants of PZT-8 piezoceramics using only one sample

2017 ◽  
Vol 714 ◽  
pp. 20-25 ◽  
Author(s):  
Yang Zhang ◽  
Liguo Tang ◽  
Hua Tian ◽  
Jiyang Wang ◽  
Wenwu Cao ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Matrix Material ◽  
Full Matrix ◽  
Material Constants

scholarly journals Complete set of material constants of single domain (K, Na)(Nb, Ta)O3 single crystal and their orientation dependence

2014 ◽  
Vol 105 (21) ◽  
pp. 212902 ◽  
Author(s):  
Limei Zheng ◽  
Shiyang Li ◽  
Shijing Sang ◽  
Junjun Wang ◽  
Xiaoqing Huo ◽  
...  
Keyword(s):  
Single Crystal ◽  
Orientation Dependence ◽  
Single Domain ◽  
Material Constants ◽  
Complete Set

Polishing process effect on the image of dispersed precipitates

1984 ◽  
Vol 42 ◽  
pp. 534-535
Author(s):  
C.T. Hu ◽  
C.W. Allen
Keyword(s):  
Matrix Material ◽  
Specimen Preparation ◽  
Second Phase ◽  
Precipitate Particle ◽  
Polishing Process ◽  
Second Phase Particles ◽  
The Matrix ◽  
Surface Profiles ◽  
Thinning Process

One important problem in determination of precipitate particle size is the effect of preferential thinning during TEM specimen preparation. Figure 1a schematically represents the original polydispersed Ni3Al precipitates in the Ni rich matrix. The three possible type surface profiles of TEM specimens, which result after electrolytic thinning process are illustrated in Figure 1b. c. & d. These various surface profiles could be produced by using different polishing electrolytes and conditions (i.e. temperature and electric current). The matrix-preferential-etching process causes the matrix material to be attacked much more rapidly than the second phase particles. Figure 1b indicated the result. The nonpreferential and precipitate-preferential-etching results are shown in Figures 1c and 1d respectively.

Polarity Determination in Sphalerite and Wurtzite Structures

1990 ◽  
Vol 48 (2) ◽  
pp. 500-501
Author(s):  
Stuart McKernan ◽  
C. Barry Carter
Keyword(s):  
Opposite Polarity ◽  
Single Domain ◽  
Polar Material ◽  
Electron Microscopic ◽  
Dynamical Interaction ◽  
X Ray ◽  
Polarity Determination ◽  
The Absolute ◽  
Microscopic Techniques

The determination of the absolute polarity of a polar material is often crucial to the understanding of the defects which occur in such materials. Several methods exist by which this determination may be performed. In bulk, single-domain specimens, macroscopic techniques may be used, such as the different etching behavior, using the appropriate etchant, of surfaces with opposite polarity. X-ray measurements under conditions where Friedel’s law (which means that the intensity of reflections from planes of opposite polarity are indistinguishable) breaks down can also be used to determine the absolute polarity of bulk, single-domain specimens. On the microscopic scale, and particularly where antiphase boundaries (APBs), which separate regions of opposite polarity exist, electron microscopic techniques must be employed. Two techniques are commonly practised; the first [1], involves the dynamical interaction of hoLz lines which interfere constructively or destructively with the zero order reflection, depending on the crystal polarity. The crystal polarity can therefore be directly deduced from the relative intensity of these interactions.

Single Crystal Growth of High-Pressure Phases of Ice and Salt Hydrate Far Below the Original Melting Point by Mixing Alcohol: Crystal Structure Determination of Magnesium Chloride Heptahydrate

2020 ◽  
Author(s):  
Keishiro Yamashita ◽  
Kazuki Komatsu ◽  
Hiroyuki Kagi
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Crystal Growth ◽  
Single Crystal ◽  
Room Temperature ◽  
Growth Technique ◽  
Salt Hydrate ◽  
X Ray

An crystal-growth technique for single crystal x-ray structure analysis of high-pressure forms of hydrogen-bonded crystals is proposed. We used alcohol mixture (methanol: ethanol = 4:1 in volumetric ratio), which is a widely used pressure transmitting medium, inhibiting the nucleation and growth of unwanted crystals. In this paper, two kinds of single crystals which have not been obtained using a conventional experimental technique were obtained using this technique: ice VI at 1.99 GPa and MgCl<sub>2</sub>·7H<sub>2</sub>O at 2.50 GPa at room temperature. Here we first report the crystal structure of MgCl2·7H2O. This technique simultaneously meets the requirement of hydrostaticity for high-pressure experiments and has feasibility for further in-situ measurements.

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