N. M. Belyavina, V. V. Kuryliuk, A. M. Kuryliuk, D. A. Stratiichuk, S. P. Starik and O. I. Nakonechna
{"title":"机械合金TiC-VN粉末混合物高温高温烧结形成（Ti，V）（C，N）固溶体","authors":"N. M. Belyavina, V. V. Kuryliuk, A. M. Kuryliuk, D. A. Stratiichuk, S. P. Starik and O. I. Nakonechna","doi":"10.1039/D5MA00805K","DOIUrl":null,"url":null,"abstract":"<p >Nanocrystalline solid solutions of Ti<small><sub>1−<em>x</em></sub></small>V<small><sub><em>x</em></sub></small>C<small><sub>0.5</sub></small>N<small><sub>0.5</sub></small> (<em>x</em> = 0.4–0.6) were synthesized by HPHT sintering (7.7 GPa, 2150 °C) of TiC–VN powder mixtures (molar ratios 2 : 1, 1 : 1, and 1 : 2), which had undergone preliminary 9-hour mechanochemical processing in a high-energy planetary ball mill until the formation of (Ti,V)C and (V,Ti)N solid solutions. The resulting compacts possess homogeneous microstructure, which was confirmed by XRD, SEM and EDS studies. Composition of the sintered solid solutions corresponds to the original TiC–VN blends, while their lattice parameters fit well into the linear dependence of Vegard's law. The Ti<small><sub>1−<em>x</em></sub></small>V<small><sub><em>x</em></sub></small>C<small><sub>0.5</sub></small>N<small><sub>0.5</sub></small> solid solutions remain stable after annealing for 2 hours at 800 °C. The Vickers microhardness measurements were carried out, with the hardness values monotonically varying between those typical for TiC and VN phases. The proposed two-step method (mechanochemical activation followed by high-pressure sintering) enables the synthesis of composites containing nanocrystalline solid solutions of a predetermined composition.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 20","pages":" 7443-7449"},"PeriodicalIF":4.7000,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00805k?page=search","citationCount":"0","resultStr":"{\"title\":\"Formation of the (Ti,V)(C,N) solid solutions by HPHT sintering of mechanically alloyed TiC–VN powder mixtures\",\"authors\":\"N. M. Belyavina, V. V. Kuryliuk, A. M. Kuryliuk, D. A. Stratiichuk, S. P. Starik and O. I. Nakonechna\",\"doi\":\"10.1039/D5MA00805K\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Nanocrystalline solid solutions of Ti<small><sub>1−<em>x</em></sub></small>V<small><sub><em>x</em></sub></small>C<small><sub>0.5</sub></small>N<small><sub>0.5</sub></small> (<em>x</em> = 0.4–0.6) were synthesized by HPHT sintering (7.7 GPa, 2150 °C) of TiC–VN powder mixtures (molar ratios 2 : 1, 1 : 1, and 1 : 2), which had undergone preliminary 9-hour mechanochemical processing in a high-energy planetary ball mill until the formation of (Ti,V)C and (V,Ti)N solid solutions. The resulting compacts possess homogeneous microstructure, which was confirmed by XRD, SEM and EDS studies. Composition of the sintered solid solutions corresponds to the original TiC–VN blends, while their lattice parameters fit well into the linear dependence of Vegard's law. The Ti<small><sub>1−<em>x</em></sub></small>V<small><sub><em>x</em></sub></small>C<small><sub>0.5</sub></small>N<small><sub>0.5</sub></small> solid solutions remain stable after annealing for 2 hours at 800 °C. The Vickers microhardness measurements were carried out, with the hardness values monotonically varying between those typical for TiC and VN phases. The proposed two-step method (mechanochemical activation followed by high-pressure sintering) enables the synthesis of composites containing nanocrystalline solid solutions of a predetermined composition.</p>\",\"PeriodicalId\":18242,\"journal\":{\"name\":\"Materials Advances\",\"volume\":\" 20\",\"pages\":\" 7443-7449\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2025-09-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://pubs.rsc.org/en/content/articlepdf/2025/ma/d5ma00805k?page=search\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Advances\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2025/ma/d5ma00805k\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Advances","FirstCategoryId":"1085","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2025/ma/d5ma00805k","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Formation of the (Ti,V)(C,N) solid solutions by HPHT sintering of mechanically alloyed TiC–VN powder mixtures
Nanocrystalline solid solutions of Ti1−xVxC0.5N0.5 (x = 0.4–0.6) were synthesized by HPHT sintering (7.7 GPa, 2150 °C) of TiC–VN powder mixtures (molar ratios 2 : 1, 1 : 1, and 1 : 2), which had undergone preliminary 9-hour mechanochemical processing in a high-energy planetary ball mill until the formation of (Ti,V)C and (V,Ti)N solid solutions. The resulting compacts possess homogeneous microstructure, which was confirmed by XRD, SEM and EDS studies. Composition of the sintered solid solutions corresponds to the original TiC–VN blends, while their lattice parameters fit well into the linear dependence of Vegard's law. The Ti1−xVxC0.5N0.5 solid solutions remain stable after annealing for 2 hours at 800 °C. The Vickers microhardness measurements were carried out, with the hardness values monotonically varying between those typical for TiC and VN phases. The proposed two-step method (mechanochemical activation followed by high-pressure sintering) enables the synthesis of composites containing nanocrystalline solid solutions of a predetermined composition.
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