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Using crystal waste of industrial production as material, the method was adopt in order to separate silica and cerium. Using ammonia water as setting agent, the research on purity and quality was studied, such as concentration of ammonia water, setting time, pH value, heating temperature and time. The result was indicated that ammonia water content is 6mol/L, pH value is 8, setting time is 30 minute,...
The remnant polarization and fatigue properties of poly(vinylidene fluoride-trifluoethylene) [P(VDF-TrFE)] copolymer at room temperature have been investigated. It is revealed that the sandwiched structure shows a better prominent ferroelectric properties than the samples without interlayer even as the thickness of P(VDF-TrFE) film is reduced to 50 nm, accompanying the fatigue improvement from 1×...
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