Luan, Xin’gang ; Chang, Sen ; Riedel, Ralf ; Cheng, Laifei (2018)
The improvement in thermal and mechanical properties of TiB2 modified adhesive through the polymer-derived-ceramic route.
In: Ceramics international, 44 (16)
doi: 10.1016/j.ceramint.2018.07.190
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
An air stable high temperature adhesive synthesized via the polymer-derived-ceramic route had received increased attention in the last two decades. To improve the thermal stability and adhesion strength of a polysilazane (PSNB) adhesive, TiB2 was added as active filler to join SiC ceramic discs. The thermal stability, phase composition and microstructure were investigated by using TGA, XRD, FT-IR, BSE and SEM measurements. Effects of the pyrolysis temperature and active filler TiB2 on the microstructure and adhesion strength have been investigated. After curing and heat-treating at 120 degrees C and 1000 degrees C in air for 2 h, respectively, the adhesion strength of the modified adhesive reached up to 10.07 MPa (3 times higher than that of pure PSNB) at room temperature, and, more importantly, retained a strength of 8.0 MPa at 800 degrees C in air. It should be noted that the formation of a glass comprised of SiO2-B2O3-TiO2 and the emergence of the hexagonal and granular TiB2 in the adhesive layer are mainly responsible for the enhanced high temperature strength.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Luan, Xin’gang ; Chang, Sen ; Riedel, Ralf ; Cheng, Laifei |
| Art des Eintrags: | Bibliographie |
| Titel: | The improvement in thermal and mechanical properties of TiB2 modified adhesive through the polymer-derived-ceramic route |
| Sprache: | Englisch |
| Publikationsjahr: | November 2018 |
| Verlag: | Elsevier SCI LTD, Oxford, England |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Ceramics international |
| Jahrgang/Volume einer Zeitschrift: | 44 |
| (Heft-)Nummer: | 16 |
| DOI: | 10.1016/j.ceramint.2018.07.190 |
| URL / URN: | https://www.sciencedirect.com/science/article/pii/S027288421... |
| Kurzbeschreibung (Abstract): | An air stable high temperature adhesive synthesized via the polymer-derived-ceramic route had received increased attention in the last two decades. To improve the thermal stability and adhesion strength of a polysilazane (PSNB) adhesive, TiB2 was added as active filler to join SiC ceramic discs. The thermal stability, phase composition and microstructure were investigated by using TGA, XRD, FT-IR, BSE and SEM measurements. Effects of the pyrolysis temperature and active filler TiB2 on the microstructure and adhesion strength have been investigated. After curing and heat-treating at 120 degrees C and 1000 degrees C in air for 2 h, respectively, the adhesion strength of the modified adhesive reached up to 10.07 MPa (3 times higher than that of pure PSNB) at room temperature, and, more importantly, retained a strength of 8.0 MPa at 800 degrees C in air. It should be noted that the formation of a glass comprised of SiO2-B2O3-TiO2 and the emergence of the hexagonal and granular TiB2 in the adhesive layer are mainly responsible for the enhanced high temperature strength. |
| Freie Schlagworte: | Polysilazane; Hexagonal and granular TiB2; Ternary glass; High temperature strength PRECERAMIC POLYMER; MATRIX COMPOSITES; TEMPERATURE; MICROSTRUCTURE; PERFORMANCE; PARTICLE |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
| Hinterlegungsdatum: | 19 Nov 2018 15:07 |
| Letzte Änderung: | 19 Nov 2018 15:07 |
| PPN: | |
| Sponsoren: | State Key Laboratory of Solidification Processing (NWPU), China: 135-QP-2015, National Key Research and Development Program of China: 2017YFB0703200, Fundamental Research Funds for the Central Universities: 3102017zy058 |
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