The aim of this investigation was to synthesize Si3N4 through the reaction of nitrogen with SiF4 (g) produced during the thermal decomposition of sodium hexafluorosilicate (Na2SiF6) …
A simple, seedless method for the synthesis of Si 3 N 4 from a hydrogen–free precursor system (Na 2 SiF 6 (s)–N 2 (g)) was developed. From thermodynamic calculations and …
N Soltani, MI Pech‐Canul, LA González… - … Journal of Chemical …, 2016 - Wiley Online Library
ABSTRACT Sodium hexafluorosilicate (Na2SiF6) powder has been used as a silicon source for formation of Si3N4 coatings by the hybrid precursor system‐chemical vapor deposition …
Due to contamination and corrosion problems caused by silicon fluoride vaporization in steelmaking plants, the formation/dissociation of Na2SiF6 has become the subject of many …
Abstract Silicon nitride (Si 3 N 4) and oxynitride (Si 2 N 2 O) were deposited by chemical vapor infiltration (CVI) through a novel route involving the in-situ thermal decomposition of …
Y Kashiwaya, AW Cramb - Metallurgical and Materials Transactions B, 2002 - Springer
Spontaneous fluoride emissions from high-temperature processes can result in an increased atmospheric fluorine content and environmental contamination. Slags containing …
It has been shown that raising the oxygen impurity concentration in starting mixture components reduces the temperature of the α–β phase transition of silicon nitride. At oxygen …
WY Lee, JR Strife, RD Veltri - Journal of the American Ceramic …, 1992 - Wiley Online Library
Deposition of α‐Si3N4 from SiF4 and NH3 was systematically studied using an axisymmetric, vertical hot‐wall reactor in the temperature range of 1340° to 1490° C. The …
R Lytvyn, I Kud, O Myslyvchenko… - … Journal of Applied …, 2024 - Wiley Online Library
The behavior of reaction powder mixtures of stoichiometric compositions calculated for the synthesis of higher niobium nitride and silicide in the temperature range 800–1400° С in …