Open AccessMechanochemical Activation and Reaction Capacity of SHS-Systems on the Base of Quartz
Author(s) -
Z. A. Mansurov,
Н. Н. Мофа
Publication year - 2011
Publication title -
eurasian chemico-technological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.227
H-Index - 9
eISSN - 2522-4867
pISSN - 1562-3920
DOI - 10.18321/ectj76
Subject(s) - quartz , combustion , materials science , chemical engineering , activation energy , composite number , dissipation , ball mill , silicon dioxide , chemistry , composite material , organic chemistry , thermodynamics , physics , engineering
The influence of different characteristics of mechanochemical activation on changes of structure and energy characteristics of silicon dioxide (quartz) is considered in this work. It is shown that after treatment in mill in the presence of different modificators, the quartz samples are complex composite formation, composed of crystalline, amorphous and polymeric component, and also contain inclusions of iron and carbon. Polymerized surface layer provides the encapsulation of the energy state of activated particle. Particularities of the technological combustion systems with active and modified quartz are investigated. The using of modifying agents leads to increasing of maximum combustion temperature, increasing of combustion process time as well as the change of phase composition of synthesis products. It is shown that alteration the sizes of synthesized sample (products) we can change the heat dissipation conditions, kinetic of reaction development and temperature in combustion wave. “The process scale” of solid phase combustion at material synthesis appears in change of the phase composition of obtained materials.