This paper deals with the alpha- to beta- Si3N4 phase transformation during pressureless sintering of Si3N4 with LiYO2 as a sintering additive. The phase evolution after heat treatments in the temperature range from 1200 to 1500degreesC shows that alpha-Si3N4 and beta-Si3N4 are the main crystalline phases in all stages of annealing. At 1200degreesC, the initial LiYO2 sintering additive completely disappears. X-ray patterns show a remarkable broadening of diffraction lines in the regions around 27-29degrees and 32-34degrees 2theta, which can be ascribed to the Y-5(SiO4)(3)N (N-apatite) phase. This indicates that the nucleation and formation of crystalline N-apatite takes place at this temperature, which is the onset of liquid formation. At 1...
The distribution of the sintering additives in the Si3N4 materials with Y2O3 and Al2O3 additives is ...
Si3N4 was sintered with sintering aids from La2O3-Y2O3 binary system varying their compositions from...
Densification as well as the alpha -- GT beta phase transformation of Si3N4 were monitored as a func...
This paper deals with the alpha- to beta- Si3N4 phase transformation during pressureless sintering o...
This paper deals with densification and alpha - GT p phase transformation Of Si3N4, with a constant ...
The influence of the sintering additive LiYO(2) (5-15 wt.%) on sintering behavior, microstructure an...
This paper deals with the densification and phase transformation of Si3N4 with additives of Li-excha...
In this study, fine grained SiO2 was exposed to CRN, and then Si3N4 ceramic powders were produced. I...
During sintering, $ rm Si sb3N sb4$ transforms through a liquid phase from the metastable $ alpha$ p...
Abstract: Liquid phase sintering of Si3N4 with melts from the system Ce2O3-AIN-SiO2 has been studied...
The alpha-beta phase transformation in Si3N4 was studied for seeded samples using all Y2O3-Al2O3 mix...
The possibility of using Li-exchanged zeolite (LAS) as additive for densification of Si3N4 ceramic w...
Fine grain alpha-phase silicon nitride (Si3N4) ceramic powders were produced via carbothermic reduct...
Silicon nitride is a prominent member of a ceramic family developed for use in structural applicatio...
The possibility of using Mg-exchanged zeolite as additive for densification of Si3N4 ceramic was stu...
The distribution of the sintering additives in the Si3N4 materials with Y2O3 and Al2O3 additives is ...
Si3N4 was sintered with sintering aids from La2O3-Y2O3 binary system varying their compositions from...
Densification as well as the alpha -- GT beta phase transformation of Si3N4 were monitored as a func...
This paper deals with the alpha- to beta- Si3N4 phase transformation during pressureless sintering o...
This paper deals with densification and alpha - GT p phase transformation Of Si3N4, with a constant ...
The influence of the sintering additive LiYO(2) (5-15 wt.%) on sintering behavior, microstructure an...
This paper deals with the densification and phase transformation of Si3N4 with additives of Li-excha...
In this study, fine grained SiO2 was exposed to CRN, and then Si3N4 ceramic powders were produced. I...
During sintering, $ rm Si sb3N sb4$ transforms through a liquid phase from the metastable $ alpha$ p...
Abstract: Liquid phase sintering of Si3N4 with melts from the system Ce2O3-AIN-SiO2 has been studied...
The alpha-beta phase transformation in Si3N4 was studied for seeded samples using all Y2O3-Al2O3 mix...
The possibility of using Li-exchanged zeolite (LAS) as additive for densification of Si3N4 ceramic w...
Fine grain alpha-phase silicon nitride (Si3N4) ceramic powders were produced via carbothermic reduct...
Silicon nitride is a prominent member of a ceramic family developed for use in structural applicatio...
The possibility of using Mg-exchanged zeolite as additive for densification of Si3N4 ceramic was stu...
The distribution of the sintering additives in the Si3N4 materials with Y2O3 and Al2O3 additives is ...
Si3N4 was sintered with sintering aids from La2O3-Y2O3 binary system varying their compositions from...
Densification as well as the alpha -- GT beta phase transformation of Si3N4 were monitored as a func...