Novel route to β‐SiAlON–SiO2 ceramic composites
"Novel route to β‐SiAlON–SiO2 cerami..." refers background or methods or result in this paper
...In order to reduce the dielectric constant of high strength and high temperature withstanding b-SiAlON composition, several studies have been conducted to introduce SiO2 into the matrix of b-SiAlON.(7,8,20) However, b-Si4Al2O2N6–SiO2 ceramic composites with ....
...Thus, the absence of any sintering aid during densification of pure fused silica (SS-100) upon sintering at 1675uC for 4 h could be responsible for the noted high porosity in the micrograph as well as in its apparent porosity of 10?72% (Table 1).(1,8,21) Thus, the information obtained from this SEM study is supporting the information obtained through XRD and other characterisation techniques for these b-Si4Al2O2N6–SiO2 based ceramic composites....
...These values are comparable with the literature values.(1,8,21) It can be seen from this table that all these ceramic composites exhibited considerable amounts of mass losses upon sintering what is common for Si3N4 based ceramics....
...2–7,15,23 A SiON nanocomposite exhibited a dielectric constant of 4?78 at 25uC and 5?0 at 1000uC and a loss tangent of 0?0014 at 25uC.(8) A dielectric constant value of 6?3 was measured for b-Si4Al2O2N6–9 wt-%SiO2 composite sintered for 4 h at 1750uC for 3 h....
...On average, three density measurements were performed on each sample (¡0?01 standard deviation).(7,8,23) The XRD patterns were recorded on a Bruker (Karlsruhe, Germany) D8 advanced system using a diffracted beam monochromated Cu Ka (0?15418 nm) radiation source....