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成果報告書詳細
管理番号20170000000164
タイトル*平成28年度中間年報 次世代構造部材創製・加工技術開発 研究開発項目(4)ー2 軽量耐熱複合材CMC技術開発(高性能材料開発)その4
公開日2017/4/18
報告書年度2016 - 2016
委託先名川崎重工業株式会社
プロジェクト番号P15006
部署名材料・ナノテクノロジー部
和文要約
英文要約Title : Development of CMC technologies of lightweight and heat-resistant composite materials (FY2015-FY2017) FY2016 Annual Report

The aim of this project is to develop SiC/SiC CMC materials that can be applied as the combustor liner for use in aircraft engines through the four items of: 1) Establishing the design and fabricating technology of the woven fabric preform for SiC/SiC CMC; 2) Developing the matrix formation process that provides the optimal balance of higher production rate, lower cost, and superior performance; 3) Developing the inspection and evaluation technology of material soundness; and 4) Developing SiC/SiC CMC materials using the latest higher performances SiC fiber. In this fiscal year, we achieved favorable results for each of the items mentioned above and described in more detail below. 1) Establishing the design and fabricating technology of the woven fabric preform for SiC/SiC CMC; We tentatively decided the 3D woven preform specification. Part shaped preforms were fabricated in accordance with the specification and evaluated its ease of matrix formulations. We studied X-ray CT as an inspection method for preform. We will utilize the findings of this study in the facility introducing in next fiscal year. 2) Developing the matrix formation process; We developed the BN coating technology which enabled to form uniform coating on both plate shaped and part shaped 2D laminate. We will check the homogeneity of BN phase on the 3D woven preform. We have our own proprietary technologies that utilize a method for dispersing glass powder into a matrix. We developed the new dispersing method of it and the densification method of matrix. 3)Developing the inspection and evaluation technology of material soundness; We conducted a study of the X-ray CT and pulse thermography method. In this study, it was suggested that delamination of EBC can be detected by pulse thermography method. 4)Developing SiC/SiC CMC materials using latest high-performance SiC fibers; We evaluated how fiber properties affected the properties of SiC/SiC-CMC with BN coated fiber by the strength of some SiC fibers CMCs. This result indicated the necessary properties of new high-performance SiC fibers.
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