Effect of Induction Heating on Surface Properties of Hot-Pressed Ceramics Based on Nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN
The effect of induction heating on the surface properties of hot-pressed ceramics based on plasma chemical nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN (additives: Al<sub>2</sub>O<sub>3</sub>, AlN, and Y<sub>2</sub>O<sub>3</sub&...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-10-01
|
| Series: | Powders |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2674-0516/2/4/43 |
| _version_ | 1797379565227606016 |
|---|---|
| author | Lina L. Sartinska |
| author_facet | Lina L. Sartinska |
| author_sort | Lina L. Sartinska |
| collection | DOAJ |
| description | The effect of induction heating on the surface properties of hot-pressed ceramics based on plasma chemical nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN (additives: Al<sub>2</sub>O<sub>3</sub>, AlN, and Y<sub>2</sub>O<sub>3</sub>) has been studied. The research demonstrates the formation of a modified layer on the surface of the hot-pressed material. The study examines the porosity, hardness, fracture toughness, brittleness, distribution of elements, and wear of hot-pressed ceramics on the surface before and after additional grinding. Removal of the surface porous layer results in increased density and hardness, leading to a higher number of acoustic emission signals during scratching with a Vickers indenter. A different response to scratching indicates a transgranular or intergranular fracture of the structure. The presence of porosity and carbon contamination on the surface layer of materials negatively impacts the properties of TiN-reinforced ceramics based on Si<sub>3</sub>N<sub>4</sub>-Al<sub>2</sub>O<sub>3</sub>-AlN (SIALON). However, the addition of Y<sub>2</sub>O<sub>3</sub> effectively prevents carbon penetration and reduces the effect of grinding. Additionally, the dark-colored tone observed on the outer volume of the samples suggests a non-thermal microwave effect of the induction furnace. |
| first_indexed | 2024-03-08T20:25:02Z |
| format | Article |
| id | doaj.art-6aee663bf48d4e2f8e25c9d1a22f4c3a |
| institution | Directory Open Access Journal |
| issn | 2674-0516 |
| language | English |
| last_indexed | 2024-03-08T20:25:02Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Powders |
| spelling | doaj.art-6aee663bf48d4e2f8e25c9d1a22f4c3a2023-12-22T14:36:59ZengMDPI AGPowders2674-05162023-10-012469770810.3390/powders2040043Effect of Induction Heating on Surface Properties of Hot-Pressed Ceramics Based on Nanopowders Si<sub>3</sub>N<sub>4</sub> and TiNLina L. Sartinska0Frantsevich Institute for Problems of Materials Science of NAS of Ukraine, 3 Krzhyzhanovsky Str., 03142 Kiev, UkraineThe effect of induction heating on the surface properties of hot-pressed ceramics based on plasma chemical nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN (additives: Al<sub>2</sub>O<sub>3</sub>, AlN, and Y<sub>2</sub>O<sub>3</sub>) has been studied. The research demonstrates the formation of a modified layer on the surface of the hot-pressed material. The study examines the porosity, hardness, fracture toughness, brittleness, distribution of elements, and wear of hot-pressed ceramics on the surface before and after additional grinding. Removal of the surface porous layer results in increased density and hardness, leading to a higher number of acoustic emission signals during scratching with a Vickers indenter. A different response to scratching indicates a transgranular or intergranular fracture of the structure. The presence of porosity and carbon contamination on the surface layer of materials negatively impacts the properties of TiN-reinforced ceramics based on Si<sub>3</sub>N<sub>4</sub>-Al<sub>2</sub>O<sub>3</sub>-AlN (SIALON). However, the addition of Y<sub>2</sub>O<sub>3</sub> effectively prevents carbon penetration and reduces the effect of grinding. Additionally, the dark-colored tone observed on the outer volume of the samples suggests a non-thermal microwave effect of the induction furnace.https://www.mdpi.com/2674-0516/2/4/43nitridesplasma chemical nanopowdershot-pressingsurface propertiesmechanical propertieswear |
| spellingShingle | Lina L. Sartinska Effect of Induction Heating on Surface Properties of Hot-Pressed Ceramics Based on Nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN Powders nitrides plasma chemical nanopowders hot-pressing surface properties mechanical properties wear |
| title | Effect of Induction Heating on Surface Properties of Hot-Pressed Ceramics Based on Nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN |
| title_full | Effect of Induction Heating on Surface Properties of Hot-Pressed Ceramics Based on Nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN |
| title_fullStr | Effect of Induction Heating on Surface Properties of Hot-Pressed Ceramics Based on Nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN |
| title_full_unstemmed | Effect of Induction Heating on Surface Properties of Hot-Pressed Ceramics Based on Nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN |
| title_short | Effect of Induction Heating on Surface Properties of Hot-Pressed Ceramics Based on Nanopowders Si<sub>3</sub>N<sub>4</sub> and TiN |
| title_sort | effect of induction heating on surface properties of hot pressed ceramics based on nanopowders si sub 3 sub n sub 4 sub and tin |
| topic | nitrides plasma chemical nanopowders hot-pressing surface properties mechanical properties wear |
| url | https://www.mdpi.com/2674-0516/2/4/43 |
| work_keys_str_mv | AT linalsartinska effectofinductionheatingonsurfacepropertiesofhotpressedceramicsbasedonnanopowderssisub3subnsub4subandtin |