Densification of hard β‐boron based ceramics by spark plasma sintering at larger heating rate.
Saved in:
| Title: | Densification of hard β‐boron based ceramics by spark plasma sintering at larger heating rate. |
|---|---|
| Authors: | Xiong, Zhengang1,2 (AUTHOR), Zou, Ji1,2 (AUTHOR) ji.zou@whut.edu.cn, Ma, Haibin3 (AUTHOR), Ji, Wei1,2 (AUTHOR), Wang, Weimin1,2 (AUTHOR), Fu, Zhengyi1,2 (AUTHOR) |
| Source: | Journal of the American Ceramic Society. Sep2025, Vol. 108 Issue 9, p1-9. 9p. |
| Subjects: | Vickers hardness, Thermal plasmas, Thermal properties, Boron, Porosity |
| Abstract: | The densification process of β‐boron via spark plasma sintering (SPS) with controlled heating rates (50–300°C/min) was investigated at different temperatures from 1000°C to 1800°C. Systematic characterization reveals that enhanced heating rates (300°C/min) effectively suppress the volatilization of B2O3 impurities, promoting in situ formation of boron‐rich oxide (B6O) through reactions between boron and B2O3. The amount of the retained B6O phase in the boron matrix increased with heating rates, which effectively accelerate the densification behavior of boron , achieving near‐full density (2.33 g/cm3) with residual porosity < 0.3% in consolidated boron ceramics. Resultant ceramics demonstrate good combination of properties, including high Vickers hardness (31.0 ± 1.8 GPa at 9.8 N) and low thermal conductivity (13.8 W·m−1·K−1 at room temperature and 5.8 W·m−1·K−1 at 873 K), the latter was governed by intensified phonon–phonon scattering with less contributions from electrons (< 1‰). [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
|
Full text is not displayed to guests.
Login for full access.
|
|
| FullText | Links: – Type: pdflink Text: Availability: 1 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 186371228 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: Densification of hard β‐boron based ceramics by spark plasma sintering at larger heating rate. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Xiong%2C+Zhengang%22">Xiong, Zhengang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zou%2C+Ji%22">Zou, Ji</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> ji.zou@whut.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Ma%2C+Haibin%22">Ma, Haibin</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ji%2C+Wei%22">Ji, Wei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Weimin%22">Wang, Weimin</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Fu%2C+Zhengyi%22">Fu, Zhengyi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+the+American+Ceramic+Society%22">Journal of the American Ceramic Society</searchLink>. Sep2025, Vol. 108 Issue 9, p1-9. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Vickers+hardness%22">Vickers hardness</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+plasmas%22">Thermal plasmas</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+properties%22">Thermal properties</searchLink><br /><searchLink fieldCode="DE" term="%22Boron%22">Boron</searchLink><br /><searchLink fieldCode="DE" term="%22Porosity%22">Porosity</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The densification process of β‐boron via spark plasma sintering (SPS) with controlled heating rates (50–300°C/min) was investigated at different temperatures from 1000°C to 1800°C. Systematic characterization reveals that enhanced heating rates (300°C/min) effectively suppress the volatilization of B2O3 impurities, promoting in situ formation of boron‐rich oxide (B6O) through reactions between boron and B2O3. The amount of the retained B6O phase in the boron matrix increased with heating rates, which effectively accelerate the densification behavior of boron , achieving near‐full density (2.33 g/cm3) with residual porosity < 0.3% in consolidated boron ceramics. Resultant ceramics demonstrate good combination of properties, including high Vickers hardness (31.0 ± 1.8 GPa at 9.8 N) and low thermal conductivity (13.8 W·m−1·K−1 at room temperature and 5.8 W·m−1·K−1 at 873 K), the latter was governed by intensified phonon–phonon scattering with less contributions from electrons (< 1‰). [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of the American Ceramic Society is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=186371228 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/jace.20679 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1 Subjects: – SubjectFull: Vickers hardness Type: general – SubjectFull: Thermal plasmas Type: general – SubjectFull: Thermal properties Type: general – SubjectFull: Boron Type: general – SubjectFull: Porosity Type: general Titles: – TitleFull: Densification of hard β‐boron based ceramics by spark plasma sintering at larger heating rate. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Xiong, Zhengang – PersonEntity: Name: NameFull: Zou, Ji – PersonEntity: Name: NameFull: Ma, Haibin – PersonEntity: Name: NameFull: Ji, Wei – PersonEntity: Name: NameFull: Wang, Weimin – PersonEntity: Name: NameFull: Fu, Zhengyi IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00027820 Numbering: – Type: volume Value: 108 – Type: issue Value: 9 Titles: – TitleFull: Journal of the American Ceramic Society Type: main |
| ResultId | 1 |