Table 1 hBN ceramics with different additives
From: Low temperature self-densification of high strength bulk hexagonal boron nitride
Additive(s) | Processing | Relative density | Side effect |
|---|---|---|---|
4 wt% B2O32 | HP | 92% | Water-resistance and high-temperature refractoriness reduced |
4.5 wt% B2O332 | SPS, 1600 °C, 25 MPa | 94.7% | |
5 wt% Al2O3/CaO33 | HP, 1800 °C, 40 MPa | 94.1% | High-temperature refractoriness reduces and dielectric loss increased |
HP, 1900 °C, 30 MPa | 94% | ||
22 wt% Y2Si2O735 | HP, 1740 °C, 25 MPa | 85% | |
None11 | SPS, 2000 °C, 100 MPa | 95.1% | None |
