A new direction in the creation of ceramic materials with a specified phase composition and structure. part ii. theoretical foundations of low-temperature synthesis of sic from gels and practical realization of this process in the technology of ceramics and refractories 1. Physicochemical foundations of low-temperature synthesis of sic in heat treatment of gels

1999 ◽  
Vol 40 (9-10) ◽  
pp. 433-441
Author(s):  
G. D. Semchenko ◽  
A. V. Dunikov ◽  
I. N. Opryshko ◽  
E. E. Starolat ◽  
S. V. Tishchenko
Keyword(s):  
Heat Treatment ◽  
Phase Composition ◽  
Low Temperature ◽  
Ceramic Materials ◽  
Practical Realization ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Composition And Structure ◽  
The Creation ◽  
Theoretical Foundations

scholarly journals Low-temperature synthesis of zeolite from perlite waste — Part II: characteristics of the products

2014 ◽  
Vol 32 (4) ◽  
pp. 526-532 ◽  
Author(s):  
Magdalena Król ◽  
Justyna Morawska ◽  
Włodzimierz Mozgawa ◽  
Waldemar Pichór
Keyword(s):  
Phase Composition ◽  
Low Temperature ◽  
Specific Surface ◽  
Cation Exchange ◽  
Cation Exchange Capacity ◽  
Exchange Capacity ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Synthesis Parameters ◽  
Autogenous Pressure

AbstractThe paper investigates the properties of sodium zeolites synthesized using the hydrothermal method under autogenous pressure at low temperature with NaOH solutions of varying concentrations. During this modification, zeolites X, Na-P1 and hydroxysodalite were synthesized. The synthesis parameters, and thus, phase composition of resulting samples, significantly affected the specific surface area (SSA) and cation exchange capacity (CEC). SSA increased from 2.9 m2/g to a maximum of 501.2 m2/g, while CEC rose from 16 meq/100 g to a maximum of 500 meq/100 g. The best properties for use as a sorbent were obtained for perlite waste modified with 4.0 M NaOH at 70 °C or 80 °C.

Low-temperature synthesis of ribbon-like orthorhombic NaNbO3 fibers and their photocatalytic activities for H2 evolution

RSC Advances ◽  
2015 ◽  
Vol 5 (42) ◽  
pp. 33001-33007 ◽  
Author(s):  
Deqing Zhang ◽  
Junye Cheng ◽  
Feng Shi ◽  
Zhangjie Cheng ◽  
Xiuying Yang ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Low Temperature ◽  
Hydrothermal Method ◽  
Annealing Temperature ◽  
H2 Evolution ◽  
Post Heat Treatment ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Photocatalytic Activities

Ribbon-like orthorhombic NaNbO3 fibers were successfully prepared by combining a traditional hydrothermal method with post-heat treatment at a low annealing temperature.

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