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A ZrB2–SiO2 coating was prepared on the SiC coated carbon/carbon composites by infiltrating silica sol into a porous ZrB2 layer. The ZrB2–SiO2 coating protected the composites from oxidation for 330h at 1500°C with a weight loss of 158g/m2. The formation of ZrO2 and ZrSiO4 from ZrB2 expanded the volume of solid phase, generating compressive stress in the coating at high-temperature oxidations. The...
NH 4 V 3 O 8 nanosheets and flakes have been prepared successfully by co-precipitation method through microwave heating (MH) and conventional heating (CH), respectively. The effect of MH on the structure and electrochemical performance of NH 4 V 3 O 8 as cathode material for lithium ion battery is investigated. In comparison with NH 4 V 3...
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