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Lead-free KNbO<sub>3</sub> ceramics were synthesized from alkoxy-derived powders fabricated by sol-gel process. The powders size-controlled from about 200 to 400 nm by different solvents and calcination temperatures were formed to ceramic discs by an ordinary ceramics processing, then sintered at 1020degC in K<sub>2</sub>O-rich atmosphere. Single phase(More)
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