以B粉,Al粉和B4C粉为原 料,采用粉末冶金法在1200℃,高纯氩气保护条件下,烧结制备了B4C-AlB12-Al复合材料.利用XRD和SEM对其相组成和显微结构进行了表 征,研究了初始原料中Al含量对材料中AlB12的晶形转变,力学性能和常温导电性能的影响.结果表明:烧结产物由B4C,AlB12,Al及Al3BC 和少量Al2O3组成,随Al含量的...
Single crystals of the new borides Ni12AlB8, and Ni10.6Ga0.4B6 were synthesized from the elements and characterized by XRD and EDXS measurements. The cryst... KH Hillebrecht - 《Journal of Solid State Chemistry》 被引量: 13发表: 2010年 Applying the Power of Reticular Chemistry to Finding...
以B粉,Al粉和B4C粉为原料,采用粉末冶金法在1 200 ℃,高纯氩气保护条件下,烧结制备了B4C-AlB12-Al复合材料.利用XRD和SEM对其相组成和显微结构进行了表征,研究了初始原料中Al含量对材料中AlB12的晶形转变,力学性能和常温导电性能的影响.结果表明:烧结产物由B4C,AlB12,Al及Al3BC和少量Al2O3组成,随Al含量的...
YAG液相烧结稀土以Y2O3,Al2O3和AlB12为烧结助剂,在真空碳管炉中,氩气保护条件下,升温烧结制备B4C陶瓷.利用XRD和SEM对其物相组成和显微结构进行表征,研究了温度变化对材料质量损失率和体积收缩率的影响.结果表明,1400℃烧结试样中Y3Al5O12(YAG)已经大量形成,并随温度的升高逐渐减少,1700℃时完全消失;AlB12的加入...
The samples were examined using light optical microscopy (LOM), energy dispersive X-ray spectroscopic analysis (EDS) and X-ray diffraction analysis (XRD). The results indicate that only a limited solubility of Al in TiB 2 and Ti in AlB 2 exists, hence a continuous compound (Al,Ti)B 2 ...
Single crystals of the new title compounds are prepared from the elements (Ar, 1250—1450 °C, 1—6 h) and their structures are determined by single crystal XRD.doi:10.1002/chin.201045001Martin AdeInst. Anorg. Anal. Chem., Albert-Ludwigs-Univ., D-79104 Freiburg/Br., GermanyDominik Kotz...
XRDNickel boridesB5 unitsSingle crystals of the new borides Ni12AlB8, and Ni10.6Ga0.4B6 were synthesized from the elements and characterized by XRD and EDXS measurements. The crystal structures were refined on the basis of single crystal data. Ni12AlB8 (oC252, Cmce, a=10.527(2), b=...
XRD and SEM techniques were used to characterize the phases and morphologies of the powders and the ceramics. The bending strength and the fracture toughness of the ceramics were measured by the three-point bending method and the indentation fracture method, respectively. The results show that ...