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In this research, we report the fabrication of ZK61 magnesium composites reinforced with a hybrid of BNNPs and \u03b2-tricalcium phosphate (TCP) using spark plasma sintering (SPS). The designed composites exhibit a dense microstructure characterized by refined \u03b1-Mg grains with \u03b2-TCP particles preferentially distributed along the \u03b1-Mg particle boundaries. In addition, trace amounts of interfacial products, such as Mg3N2 and MgB2, are detected to act as chemical anchoring phases, promoting stronger interfacial bonding. Notably, the composite containing 5.0 wt % \u03b2-TCP and 0.3 wt % BNNPs demonstrates a remarkable combination of strength and ductility, exhibiting a compressive yield strength of \u223c132 MPa, an ultimate compressive strength of \u223c380 MPa, and an elongation of \u223c28.9%. This favorable balance of high strength and substantial plastic deformability highlights the synergistic reinforcing effect of \u03b2-TCP and BNNPs in the ZK61 matrix. In addition, immersion tests reveal that the degradation rate of the 0.3BNNP\/5TCP\/ZK61 composite is approximately one-fourth that of the monolithic ZK61 alloy immersed in SBF for 28 d. These findings suggest that BNNP\/\u03b2-TCP reinforced ZK61 composites are promising candidates for biodegradable implant materials.<\/jats:p>","DOI":"10.1021\/acsabm.6c01445","type":"journal-article","created":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T19:01:44Z","timestamp":1788807704000},"page":"8921-8934","source":"Crossref","is-referenced-by-count":0,"title":["A Biodegradable ZK61 Composite Reinforced with \u03b2-Tricalcium Phosphate and BN Nanoplatelets: Simultaneous Enhancement of Mechanical Properties and In Vitro Degradation Behaviors"],"prefix":"10.1021","volume":"9","author":[{"given":"Hao","family":"Shen","sequence":"first","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215021"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zeming","family":"Sheng","sequence":"additional","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215021"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xingcheng","family":"Zhang","sequence":"additional","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215021"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weiwei","family":"Liu","sequence":"additional","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215021"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhanwen","family":"Xing","sequence":"additional","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215021"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0558-045X","authenticated-orcid":true,"given":"Yao","family":"Chen","sequence":"additional","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215021"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,9,7]]},"reference":[{"key":"2026092100090585500_cit1","doi-asserted-by":"publisher","first-page":"489","DOI":"10.1016\/j.jmst.2013.02.005","article-title":"Novel magnesium alloys developed for biomedical application: a review","volume":"29","author":"Li","year":"2013","journal-title":"J. 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