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出 处:《现代化工》2012年第6期61-63,共3页Modern Chemical Industry
摘 要:以Mg(OH)2和H3BO3为原料,利用高温-熔盐-干法合成了高品质的Mg2B2O5晶须,并对Mg2B2O5晶须的生长机理进行了探讨。将Mg(OH)2、H3BO3、NaCl和KCl粉末放入高速粉碎机中研磨20 min混匀,然后将混合物在850℃下焙烧4 h。XRD和EDX表征结果表明,最终产品为纯净的单斜相Mg2B2O5。SEM和TEM表征结果表明,合成的Mg2B2O5晶须形貌尺寸均一,长度为30~55μm,直径为0.17~0.25μm,平均长径比为190。The magnesium borate whisker with high quality is prepared by high temperature-molten salt-dry method with Mg (OH)2 and H3 BO3 as raw materials. The growth mechanism of Mg2B2O5 whisker is discussed as well. Mg (OH) 2, H3 BO3, NaC1 and KC1 powders are grinded for 20 minutes by high-speed grinder to obtain homogeneous mixture and then calcined at 850℃ for 4 hours. XRD (X-ray diffraction) and EDX (energy dispersive X-ray spectroscopy) results show that the sample is pure monoclinic MgzB2O5. SEM (scanning electron microscopy) and TEM (transmission electron microscopy) results show that synthesized Mg2 B2 O5 whisker is morphology and dimensions homogeneous, with length 30-55 μm,diameter 0. 17-0. 25μm and average aspect ratio 190.
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