Determination of Silicon Content in SiC Ceramics Precursor by Modified Titration

摘要：

Polycarbosilane (PCS), an important precursor for manufacture of silicon carbide (SiC) ceramics, was prepared and analyzed to determine its chemical composition. The major elements of silicon (Si) and carbon ? in Si-C backbones and side chains in PCS represent more than 80% with minor elements of oxygen and hydrogen being less than 20%. In this work, a conventional potassium silicofluoride volumetric method was explored and modified for establishing a standard routine procedure to evaluate Si content in PCS. The optimal conditions were investigated using an orthogonal designed four-factor-three-level normal experimental scheme. The suitable parameters and standard procedure to analyze Si in PCS were obtained.

作者: Yang Lujiao Cheng Xuan Zhang Ying Liu Jia

作者单位: Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361 Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen 361

会议类型: 国际会议

会议名称: The Second Annual Meeting on Testing and Evaluation of Inorganic Mateirals(第二届全国无机材料测试与评价学术年会 TEIM-2)

会议地点: 长沙

会议语种:英文

页码: 441-445

在线出版日期: 2011-06-30（万方平台首次上网日期，不代表论文的发表时间）