A new direction in the creation of ceramic materials with a specified 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 2. Mechanochemical synthesis of silicon carbide and oxynitride in modifying powders of refractory compounds

1999 ◽  
Vol 40 (11-12) ◽  
pp. 489-494
Author(s):  
G. D. Semchenko ◽  
I. N. Opryshko ◽  
E. E. Starolat ◽  
K. P. Vernigora
ChemInform ◽  
2013 ◽  
Vol 44 (40) ◽  
pp. no-no
Author(s):  
Mita Dasog ◽  
Larissa F. Smith ◽  
Tapas K. Purkait ◽  
Jonathan G. C. Veino

2013 ◽  
Vol 49 (62) ◽  
pp. 7004 ◽  
Author(s):  
Mita Dasog ◽  
Larissa F. Smith ◽  
Tapas K. Purkait ◽  
Jonathan G. C. Veinot

2021 ◽  
Vol 129 (2) ◽  
pp. 207
Author(s):  
В.А. Кравец ◽  
Е.В. Иванова ◽  
К.Н. Орехова ◽  
Г.А. Гусев ◽  
В.В. Васькевич ◽  
...  

The main purpose of this work was to carry out a low-temperature synthesis of glass ceramics containing YNbO4:Eu3+ crystallites and to study the structural and luminescent properties of the obtained samples. Within the framework of this work, the inclusions that crystallized under the conditions of low-temperature synthesis in the systems of SiO2-Na2O-K2O-Y2O3-Nb2O5-Eu2O3 (SiNaK) and B2O5-Na2O-Y2O3-Nb2O5-Eu2O3 (BNa) were investigated for the first time. It was shown that YNbO4: Eu3+ crystallized in both considered systems. In the SiNaK system the crystallization of SiO2 also occurred (quartz, crisstabolite, and tridymite) under the selected conditions. The BNa system proved to be the most promising for the synthesis of activated glass-ceramics with YNbO4, since the required crystallites crystallized only in ithis system. The luminescent properties of crystalline inclusions were investigated using the local cathodoluminescence technique. The composition and structure of glass ceramics were studied by electron-probe microanalysis and X-ray diffraction phase analysis.


Sign in / Sign up

Export Citation Format

Share Document