Fabrication and pressure testing of a gas-turbine component manufactured by a preceramic-polymer-impregnation method
Fabrication and pressure testing of a gas-turbine component manufactured by a preceramic-polymer-impregnation method
复制标题
DOI：
10.1016/s0266-3538(99)00015-9
复制
发表时间：
1999-05
影响因子：
9.1
通讯作者：
Kiyoshi Sato;A. Tezuka;O. Funayama;T. Isoda;Y. Terada;S. Kato;M. Iwata
中科院分区：
文献类型：
--
作者：
Kiyoshi Sato;A. Tezuka;O. Funayama;T. Isoda;Y. Terada;S. Kato;M. Iwata
燃气涡轮发动机的一个部件，内涡旋支架，由SiCo -纤维增强SiNC复合材料制成，其基体由甲基氢硅氮烷获得。该部件由SiCO纤维布和甲基氢硅氮烷组成的预浸料片层压成型，并采用真空袋装法固化。通过聚合物浸渍和热解（PIP）对产物进行致密化。断裂强度和应力/应变行为是通过水力内增压试验来测量的。在循环加载过程中观察到复合构件的滞回和伪弹性行为。因此，其行为与在小样本的力学试验中发现的相似。复合件的断裂强度估计为180 MPa，与试件的抗拉强度相同。
One of the components of the gas-turbine engine, the inner scroll support, was fabricated by a SiCO-fiber-reinforced SiNC composite of which the matrix was obtained from methylhydrosilazane. The part was shaped by laminating prepreg sheets, consisting of SiCO fiber cloth and methylhydrosilazane, and cured by using a vacuum-bagging method. Densification of the product was performed by polymer impregnation and pyrolysis (PIP). The fracture strength and stress/strain behaviour were measured by the use of a hydraulic internal pressurization test. Hysteresis during cyclic loading and pseudo-elastic behavior were observed in the composite component. Thus behaviour was similar to that found in mechanical tests of small specimens. The fracture strength of the composite part was estimated to be 180 MPa, which was the same as the tensile strengths of test pieces.