Synthesis of the ternary metal carbide solid‐solution ceramics by polymer‐derived‐ceramic route

2020 ◽  
Vol 103 (5) ◽  
pp. 2970-2974 ◽  
Author(s):  
Honghua Liu ◽  
Bin Du ◽  
Yanhui Chu
Keyword(s):  
Solid Solution ◽  
Metal Carbide ◽  
Polymer Derived Ceramic ◽  
Ternary Metal ◽  
Ceramic Route

Glass-forming region of the Ni–Nb–Ta ternary metal system determined directly from n-body potential through molecular dynamics simulations

2009 ◽  
Vol 24 (5) ◽  
pp. 1815-1819 ◽  
Author(s):  
Y. Dai ◽  
J.H. Li ◽  
X.L. Che ◽  
B.X. Liu
Keyword(s):  
Molecular Dynamics ◽  
Solid Solution ◽  
Molecular Dynamics Simulations ◽  
Crystalline Solid ◽  
Metal System ◽  
Glass Forming ◽  
Solution Models ◽  
Ternary Metal ◽  
Dynamics Simulations ◽  
Body Potential

An n-body Ni–Nb–Ta potential is constructed to conduct molecular dynamics simulations using 129 solid solution models with various compositions. Comparing the relative stability of solid solutions versus their disordered counterparts, simulations determine two critical solid-solubility lines, which define a region in the composition triangle. If an alloy is located inside the defined region, a disordered state is energetically favored; if it is located outside, a crystalline solid solution is preserved. The region is therefore named as the metallic glass-forming region.

scholarly journals Ferroelectric and Dielectric Properties of BaZr0.2[Ti(1-x)Mgx/3Ta2x/3]0.8O3 Solid Solution

2021 ◽  
Vol 8 ◽  
Author(s):  
Jithesh Kavil ◽  
Jobin Varghese ◽  
Govind Raj Kovummal
Keyword(s):  
Crystal Structure ◽  
Solid Solution ◽  
Transition Temperature ◽  
Dielectric Properties ◽  
Frequency Range ◽  
Minute Amount ◽  
State Ceramic ◽  
Solid State Ceramic Route ◽  
Ceramic Route ◽  
Structure And Microstructure

BaZr0.2[Ti(1-x)Mgx/3Ta2x/3]0.8O3 (x = 0.0, 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0) (BZTMT) ceramics were prepared through conventional solid state ceramic route. The crystal structure and microstructure of the compounds were investigated respectively using XRD and SEM. The dielectric properties were measured in the frequency range of 100 Hz–1 MHz. The ferroelectric Curie temperature of BaZr0.2Ti0.8O3 (x = 0) shifted from 21°C to -10°C with the addition of minute amount of dopant (x = 0.025) and the paraelectric transition temperature is diffusive in nature. The relative permittivity and dielectric loss of BZTMT at 1 MHz varies from 5205 to 24 and 1.8 × 10–2 to 2.0 × 10–5 respectively, as the value of x increases from 0 to 1.

An air stable high temperature adhesive from modified SiBCN precursor synthesized via polymer-derived-ceramic route

2018 ◽  
Vol 44 (7) ◽  
pp. 8476-8483 ◽  
Author(s):  
Xin’gang Luan ◽  
Sen Chang ◽  
Ralf Riedel ◽  
Laifei Cheng
Keyword(s):  
High Temperature ◽  
Polymer Derived Ceramic ◽  
Ceramic Route

Synthesis and characterization of the ternary metal diboride solid‐solution nanopowders

2019 ◽  
Vol 102 (8) ◽  
pp. 4956-4962 ◽  
Author(s):  
Tongqi Wen ◽  
Shanshan Ning ◽  
Da Liu ◽  
Beilin Ye ◽  
Honghua Liu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Synthesis And Characterization ◽  
Ternary Metal

Disordered grain growth in polycrystalline GaN obtained by the polymer-derived-ceramic route

RSC Advances ◽  
2014 ◽  
Vol 4 (6) ◽  
pp. 2634-2639 ◽  
Author(s):  
Eva M. Campo ◽  
Jonathan Poplawsky ◽  
Anamaris Meléndez ◽  
Joshua L. Robles-García ◽  
Idalia Ramos ◽  
...  
Keyword(s):  
Grain Growth ◽  
Polymer Derived Ceramic ◽  
Ceramic Route

DIELECTRIC BEHAVIOUR OF MANGANESE MODIFIED STRONTIUM TITANATE CERAMICS SYNTHESIZED BY SOLID STATE CERAMIC ROUTE

2013 ◽  
Vol 22 ◽  
pp. 207-216
Author(s):  
PRAKASH SINGH ◽  
PRABHAKAR SINGH ◽  
OM PARKASH ◽  
DEVENDRA KUMAR
Keyword(s):  
Solid Solution ◽  
Dielectric Constant ◽  
Solid State ◽  
Space Charge ◽  
Single Phase ◽  
Dielectric Behaviour ◽  
Average Grain Size ◽  
State Ceramic ◽  
Solid State Ceramic Route ◽  
Ceramic Route

Various compositions with x=0.01, 0.05, 0.10, 0.20 and 0.30 in the system SrTi 1-x Mn x O 3 were prepared by solid state ceramic route. Compositions with x ≤ 0.10 were found to be single phase solid solution. In this paper, the result of investigations on the effect of manganese substitution in SrTiO 3 on dielectric behaviour for the compositions with x ≤ 0.10, which form single phase solid solution have been reported. Average grain size is small, this may be due to segregation of dopant at grainboundaries. Dielectric measurements were made in the temperature range 150–500K. Measurements of dielectric properties show that there is not much space charge polarisation across the grains and grainboundaries interface. This space charge polarisation only occurs at high temperature and one observes large dispersion of dielectric constant and dissipation factor. At low temperatures, dielectric behaviour follows the character of SrTiO 3 with only difference in the values of dielectric constant.

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