2024年10月1日 · High-resolution TEM images (Fig. 2 (a-c)) reveal the presence of defect clusters at the peak damage regions in samples irradiated with Xe ions, Xe+He ions, and Xe+He+H ions. In comparison with the sample irradiated solely with Xe ions, the defect clusters in the Xe+He irradiated sample exhibited a greater number density and size.

2021年7月15日 · In the present study, for the first time, a new method for the synthesis of MAX phases of the composition Ti 3 SiC 2, combining high-temperature sintering and hot pressing, was proposed and implemented, and this made it possible to obtain the purest material with a Ti 3 SiC 2 phase content equal to 99.2%.

2013年6月18日 · In this work, Ti 3 (Si,Al)C 2 was irradiated at room temperature with 92 MeV Xe ions to induce irradiation damage. The samples were investigated by transmission electron microscopy (TEM) through front view and cross-section observations, which allowed to follow microstructure changes from 0.02 dpa up to 6.67 dpa.

In this study, the Ti 3 SiC 2 MAX phase coatings on Ti-6Al-4 V substrates were successful synthesized through a two-step method involving High Power Impulse Magnetron Sputtering (HiPIMS) deposition followed by vacuum annealing at 850 °C for 90 min.

We recently used molecular dynamics (MDs) on graphite, and TEM observations on Ti 3 SiC 2 after spherical nanoindentation [48], to extend our understanding of bulk ripplocations and their...

通过形成作为Ti3AlC2和Ti3SiC2的前体的Ti2AlC，已经证明并解释了Al的催化作用。 最后，薄膜的第二相和连续性已由x和厚度因子控制。 实际上，对于富含Al的薄膜，获得了MAX相膜的连续性，而对于沉积的最薄TiAlx层，已经合成了最纯的MAX相。

Ti3SiC2 is a potential structural material for nuclear reactor applications. However, He irradiation effects in this material are not well understood, especially at high temperatures. Here, we...

钛碳化硅Ti3SiC2（Titanium silicon carbide）是一种综合陶瓷材料，既具有耐高温、抗氧化、高强度的性能，同时又具有金属材料的导电、导热、可加工性、塑性等。 该项材料的发展契机大致在20世纪80年代，由于纤维、晶须等增强剂的迅速发展和航空高推重比发动机的要求， 陶瓷基复合材料 成为研究热点。 采用纤维、晶须增强使其韧性得到改善，但因制备成本高和可靠性差，仍难以应用。 针对这一问题研究人员开始探索兼有金属和陶瓷性质的高温材料，最后在Ti-Si-C系 …

2024年10月11日 · The phase transformation and interface cracking of this composite under ion irradiation (single Xe, Xe + He, and Xe + He + H ions) and subsequent annealing were analyzed using transmission electron microscopy (TEM), mainly focusing on the interface regions.

As shown by transmission electron microscopy (TEM) during the very early stages of oxidation, the oxide layer formed contains amorphous SiO 2 and crystalline rutile (TiO 2).