Structural Changes on Heating and High-Temperature Deformation of Composites Based on Pyrophyllite Raw Material from the Kul’-Yurt-Tau Deposit
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The changes occurring when composites based on pyrophyllite raw material, obtained from the Kul’-Yurt-Tau deposit, with phosphate binder are heated are studied. Their compaction and hardening are strongly affected by processes associated with the interaction of the ancillary rocks with the phosphate binder. The deformations of composites in two temperature regimes are studied: heating with the temperature changing at a constant rate and with isothermal soaking. The experimental results make it possible to predict the behavior of the materials during operation in the thermal units of different systems and optimize materials preparation in the process of manufacturing articles with prescribed characteristics.
Keywordscomposite pyrophyllite phosphate binder structure deformation heating
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