Oishi Shuji, Teshima Katsuya, Kondo Hitoshi
Department of Environmental Science and Technology, Faculty of Engineering, Shinshu University, Nagano 380-8553, Japan.
J Am Chem Soc. 2004 Apr 21;126(15):4768-9. doi: 10.1021/ja049678v.
Hexagonal bipyramidal ruby (Al2O3:Cr) crystals were easily grown by the evaporation of MoO3 flux isothermally. The crystal growth was conducted by heating a mixture of solute (Al2O3 + 0.5 mass% Cr2O3) and flux (MoO3) at 1100 degrees C, followed by holding the solution at this temperature for 5 h. The ruby crystals obtained lengths up to 1.8 mm and widths up to 1.7 mm and were transparent-red. Their form was a bipyramid bounded by well-developed {113} faces. Molybdenum trioxide was found to be a very suitable flux for growing bipyramidal ruby crystals.
通过等温蒸发三氧化钼助熔剂可轻松生长出六方双锥红宝石（Al2O3:Cr）晶体。晶体生长过程是将溶质（Al2O3 + 0.5质量% Cr2O3）和助熔剂（MoO3）的混合物在1100℃下加热，然后将溶液在此温度下保持5小时。得到的红宝石晶体长度可达1.8毫米，宽度可达1.7毫米，呈透明红色。其形态为双锥，由发育良好的{113}面界定。发现三氧化钼是生长双锥红宝石晶体非常合适的助熔剂。
