{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T10:57:10Z","timestamp":1782471430769,"version":"3.54.5"},"reference-count":45,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T00:00:00Z","timestamp":1741305600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key Research and Development Program of China","award":["2024YFF0728401"],"award-info":[{"award-number":["2024YFF0728401"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>In this research, a nitrogenized shell layer was formed on the surface of Ti powder in a high-temperature N2 environment, resulting in core\u2013shell-structured Ti@TixN powder. Using this as a reinforcement, Ti@TixN\/Al composite was successfully designed and fabricated via pressure infiltration method. The TixN layer consists of a double-layered spherical shell structure, with TiN as the outer layer and Ti2N as the inner layer. After the composite was fabricated, no intermetallic compounds between Ti and Al were observed at the interface, as the TixN layer effectively prevented the reaction between Ti and Al. The tensile strength, yield strength, and elongation of the Ti@TixN\/Al composite were 173 \u00b1 7.7 MPa, 115 \u00b1 8.1 MPa, and 7.5 \u00b1 0.55%, respectively. Both the strength and hardness were significantly improved compared to the pure Al matrix. Observations of the tensile fracture surface revealed severe interfacial debonding at the interface, and the reinforcement did not exhibit significant coordinated deformation with the matrix. This suggests that future research could focus on strengthening the matrix by adding alloying elements and improving the interfacial bonding to enhance the performance of the composite.<\/jats:p>","DOI":"10.3390\/ma18061200","type":"journal-article","created":{"date-parts":[[2025,3,7]],"date-time":"2025-03-07T09:38:46Z","timestamp":1741340326000},"page":"1200","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Study on Microstructure and Mechanical Properties of Core\u2013Shell-Structured Ti@TixN Reinforced Al Composite Prepared by Pressure Infiltration"],"prefix":"10.3390","volume":"18","author":[{"given":"Yixiao","family":"Xia","sequence":"first","affiliation":[{"name":"School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China"},{"name":"State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhiyu","family":"Sun","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China"},{"name":"State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ping","family":"Zhu","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China"},{"name":"State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juanrui","family":"Hu","sequence":"additional","affiliation":[{"name":"Beijing Institute of Aerospace Control Devices, Beijing 100080, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leilei","family":"Hao","sequence":"additional","affiliation":[{"name":"Beijing Institute of Aerospace Control Devices, Beijing 100080, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yun","family":"Liu","sequence":"additional","affiliation":[{"name":"Beijing Institute of Aerospace Control Devices, Beijing 100080, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7635-9085","authenticated-orcid":false,"given":"Boyu","family":"Ju","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China"},{"name":"State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guoqin","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China"},{"name":"State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1995-3840","authenticated-orcid":false,"given":"Wenshu","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China"},{"name":"State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin 150001, China"},{"name":"Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou 450018, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"147003","DOI":"10.1016\/j.msea.2024.147003","article-title":"Mechanical behavior analysis on SiC\/Al composites via in-situ neutron diffraction combined with finite element methods","volume":"912","author":"Gu","year":"2024","journal-title":"Mater. 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