The effects of granulation of reactive mixtures Ti-Cr-C and Ti-Cr-C-Ni on the combustion temperature and velocity, as well as phase composition and mechanical properties (crushing ability) of combustion products, were studied. Granulation was associated with a 1.5-fold increase in combustion velocity, caused by a nearly 10-fold increase in gas permeability. Secondary reactions between TiC, Cr₇C₃, and molten Ni led to the formation of (Ti,Cr)C FCC solid solution and Ni_2.88Cr_1.12 intermetallics. After the combustion of Ti-Cr-C-Ni mixtures, prolonged fluorescence was registered, suggesting the exothermic nature of secondary phase formation reactions. The introduction of the nickel binder decreased the content of Cr in the solid solution (Ti,Cr)C owing to the formation of the Ni_2.88Cr_1.12 phase. To prevent the Cr depletion from the carbide solid solution, Ni-20%Cr binder was added to the granulated 80%(Ti + C)/20%(3Cr + 2C) mixture. Combustion of granulated mixture yielded brittle porous sinter cake, which was easy to crush and mill, whereas the combustion products from the powdered mixtures were more ductile and harder to crush.

中文翻译：

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（Ti，Cr）C基金属陶瓷，通过元素SHS具有Nicr粘合剂含量变化，用于透视切割工具

研究了反应混合物Ti-Cr-C和Ti-Cr-C-Ni的造粒对燃烧温度和速度以及燃烧产物的相组成和力学性能（破碎能力）的影响。造粒与气体渗透率增加近10倍引起的燃烧速度增加1.5倍有关。TiC，Cr ₇ C ₃和熔融Ni之间的二次反应导致形成（Ti，Cr）C FCC固溶体和Ni _2.88 Cr _1.12金属间化合物。Ti-Cr-C-Ni混合物燃烧后，荧光时间延长，表明第二相形成反应的放热性质。由于形成Ni _2.88 Cr _1.12相，镍粘合剂的引入降低了固溶体（Ti，Cr）C中的Cr含量。为了防止碳化物固溶体中的Cr耗尽，将Ni-20％Cr粘结剂添加到颗粒化的80％（Ti + C）/ 20％（3Cr + 2C）混合物中。颗粒状混合物的燃烧产生易碎的多孔烧结饼，其易于粉碎和磨碎，而粉末状混合物的燃烧产物则更易延展且更难以粉碎。