@techreport{oai:jaxa.repo.nii.ac.jp:00039851, author = {中村, 富久 and 依田, 真一 and 鮫島, 浩人 and 小田原, 修 and 森, 喜代志 and 丹治, 彰 and 堀田, 任晃 and Nakamura, Tomihisa and Yoda, Shinichi and Samejima, Hiroto and Odawara, Osamu and Mori, Kiyoshi and Tanji, Akira and Hotta, Hideaki}, month = {Jan}, note = {微小重力場における燃焼合成技術の可能性を評価し、次期TR-1A(宇宙実験用小型ロケット)飛行に対する実験パラメータを確認するために、(1)Ti-B-Al複合化合物の燃焼合成、および(2)1,300Kおよび1,800Kクラスの化学炉としてTi-B-AlおよびTi-C系の燃焼合成の適用、の2種類の燃焼合成実験を、パラボリックフライトを利用した微小重力場で実施した。上記化学炉を使って、主としてZr-Al-Fe2O3混合粉末系のテルミット反応過程およびZrO2-Al2O3-Fe混合粉末系の溶融過程を検討した。本研究の結果として、微小重力場で燃焼合成により得たTiB2-Al焼結体は地上で得た焼結体よりも材料特性が20%以上向上していること、並びに生成物中のZrO2相は、地上で得た生成物とは極めて異なり高温相(正方晶相)の存在比が高いことを確認した。, In order to assess the potential of combustion synthesis technology applied under a microgravity environment and confirm the experimental parameters for the coming TR-1A (Test Rocket-1A) flight, two type combustion synthesis experiments have been carried out under a parabolic flight microgravity environment: (1) combustion synthesis of Ti-B-Al composite materials; and (2) application of combustion synthesis of Ti-B-Al and Ti-C systems as 1,300 K and 1,800 K class chemical ovens. With the aids of the above chemical ovens, the process of thermite reaction of Zr-Al-Fe2O3 powder mixture system and the fusion processing of ZrO2-Al2O3-Fe one have mainly been investigated. As a result of the present work, it was confirmed that the composites of TiB2-Al obtained by combustion synthesis under the microgravity environment show more than 20 percent higher material properties than those obtained on ground and the ZrO2 phases obtained consist of higher ratio of high-temperature phase (tetragonal phase), which is quite different from those obtained on ground., 資料番号: AA0000740001, レポート番号: NASDA-TMR-960023}, title = {微小重力場での燃焼合成技術}, year = {1997} }