Luminescence properties of Nd:YAG nanoceramics prepared by low temperature high pressure sintering method

2007 ◽  
Vol 29 (10) ◽  
pp. 1244-1251 ◽  
Author(s):  
D. Hreniak ◽  
R. Fedyk ◽  
A. Bednarkiewicz ◽  
W. Stręk ◽  
W. Łojkowski
Keyword(s):  
High Pressure ◽  
Low Temperature ◽  
Luminescence Properties ◽  
High Pressure Sintering ◽  
Sintering Method

Effect of Annealing on Ferroelectric Properties of Nanometre BaTiO 3 Ceramics Prepared by High Pressure Sintering Method

2007 ◽  
Vol 24 (1) ◽  
pp. 244-247 ◽  
Author(s):  
Li Peng-Fei ◽  
Jin Chang-Qing ◽  
Xiao Chang-Jiang ◽  
Wang Feng-Ping ◽  
Wang Xiao-Hui ◽  
...  
Keyword(s):  
High Pressure ◽  
Ferroelectric Properties ◽  
High Pressure Sintering ◽  
Sintering Method

Thermoelectric performance of p-type Nd1−In Te3 fabricated by high pressure sintering method

2017 ◽  
Vol 696 ◽  
pp. 648-654 ◽  
Author(s):  
Tao Mao ◽  
Pan Ren ◽  
Guiying Xu ◽  
Junling Gao ◽  
Jiaxin Di ◽  
...  
Keyword(s):  
High Pressure ◽  
Thermoelectric Performance ◽  
High Pressure Sintering ◽  
P Type ◽  
Sintering Method

scholarly journals Hydrothermal synthesis and thermoelectric properties of PbS

2016 ◽  
Vol 34 (4) ◽  
pp. 754-759 ◽  
Author(s):  
He Zhang ◽  
Haiyan Wang ◽  
Hongyu Zhu ◽  
Hongtao Li ◽  
Taichao Su ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrothermal Method ◽  
Thermoelectric Properties ◽  
Electrical Transport ◽  
Figure Of Merit ◽  
X Ray Diffraction ◽  
High Pressure Sintering ◽  
Coarse Grains ◽  
Hydrothermal Approach ◽  
Sintering Method

AbstractIn this paper, hydrothermal approach combined with high pressure sintering method was employed to synthesize PbS. The X-ray diffraction results show that single phase PbS can be obtained by a simple hydrothermal method. The scanning electron microscope results show that the PbS sample has nearly cubic shape and preserves well crystallized and coarse grains after high pressure sintering. The thermoelectric performance of PbS obtained in this study is comparable to that of a PbS sample prepared by conventional method. The carrier type and concentration of PbS can be tuned effectively by doping with Bi. The maximum figure of merit for PbS doped with 1 mol% Bi reaches 0.44 at 550 K, which is about 30 % higher than that of undoped PbS. These results indicate that hydrothermal method provides a viable and controllable way of tuning the electrical transport and thermoelectric properties for PbS.

Fast Solidification and Electrical Conductivity of Apatite-Type Nanoceramics

2014 ◽  
Vol 981 ◽  
pp. 909-913
Author(s):  
Qin Li ◽  
Li Min Dong
Keyword(s):  
High Pressure ◽  
Sol Gel ◽  
Secondary Phase ◽  
X Ray Diffraction ◽  
Ac Impedance Spectroscopy ◽  
High Pressure Sintering ◽  
Conventional Sintering ◽  
Diffraction Patterns ◽  
Sintering Method ◽  
Apatite Type

Apatite oxides electrolytes La9.33(SiO4)6O2was prepared following the Sol-Gel aqueous route. The structure of La9.33(SiO4)6O2was evaluated using the X-ray diffraction patterns (PXRD). The main phase is La9.33Si6O26with the Minor impurity phase of La2SiO5as a secondary phase. And dense La9.33(SiO4)6O2nanoceramics with grain size of smaller than 100 nm were fabricated by high-pressure sintering, the pressure of 4.5 GPa, the sintering temperature of 1200oC and dwelling time of 10 min were used. The ionic conductivity of the samples is evaluated by AC impedance spectroscopy. The conductivity of dense La9.33(SiO4)6O2nanoceramics by high-pressure densification is one multiple higher compared with that of the microcrystalline ceramics. The activation energy in the samples by high-pressure densification and conventional sintering method was 1.06 eV and 1.44 eV, respectively.

scholarly journals Research on the grinding performance of high pressure sintering SiCp/Al matrix composites

2018 ◽  
Vol 38 (2) ◽  
pp. 175-181
Author(s):  
Zhiru Chen ◽  
Yukun Hu
Keyword(s):  
High Pressure ◽  
Volume Fraction ◽  
Matrix Composites ◽  
Large Area ◽  
Grinding Performance ◽  
Sic Particles ◽  
Al Composite ◽  
High Pressure Sintering ◽  
Al Matrix Composites ◽  
Sintering Method

The two-dimensional vertical grinding test equipment was used to grind SiCp/Al composites which were prepared by high pressure sintering method. The SEM observation of grinding morphology showed that grinding damage can be prevented by SiC particles reinforcement, 60% volume fraction of SiC particles of SiCp/Al composite can hinder grinding depth and grinding performance was improved with the sintering pressure and temperature increasing. In addition, some scratches and exfoliated pits of SiC particles were observed on the surface of 60% volume SiCp/Al composite as the increase of grinding grain, while the depth of these scratches was shallower, there was no large area exfoliated pits of SiC reinforcements.<br>

Sign in / Sign up

Export Citation Format

Share Document