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1473K，30MPa，1h的热压条件下烧结了Ti／Ti+TiAl／TiAl粉体叠层材料，在烧结过程中，混合层Ti＋TiAl内部发生了剧烈的化学反应（Ti＋TiAl→AlTi2），该反应波及到相邻的Ti层及TiAl层，因而形成了物相组成渐变的精细梯度结构：Ti／Ti＋AlTi2／AlTi2／AlTi2＋TiAl／TiAl．使用A176Si10Zn10Cu4质量分数，％）合金钎料在853K，20min的钎焊条件下将该材料的TiAl例与Al进行了连接界面的测试表明，钎焊过程中钎料中的元素Si向TiAl表面扩散，并有Ti-Si化合物生成对反应机理进行了探讨．最终获得的Ti／TiAl／Al系密度梯度材料不仅整体致密，而且其密度治厚度准连续变化
The Ti / Ti + TiAl / TiAl powders were sintered at 1473K, 30MPa and 1h. During the sintering, a violent chemical reaction (Ti + TiAl → AlTi2) occurred in the mixed layer Ti + TiAl. Adjacent Ti layer and TiAl layer, thus forming a fine graded structure with gradual phase composition: Ti / Ti + AlTi2 / AlTi2 / AlTi2 + TiAl / TiAl. Using A176Si10Zn10Cu4 mass fraction,%) alloy brazing filler metal at 853K, 20min under the conditions of the material TiAl and Al were connected interface test shows that the brazing process element Si to the TiAl surface diffusion, The reaction mechanism was also discussed with Ti-Si compound formation. The finally obtained Ti / TiAl / Al-based density gradient material is not only the overall density, but also the density of the thickness of the quasi-continuous change