“…Because of the high temperature in the plasma, this technique is particularly fit for spraying ceramics. However, it has never been tested with glasses, except for few studies [5,6], in particular in the biomaterials research field [7]. Powders of high performance glasses and glass-ceramics are difficult to sinter, when employed as glazes on traditional ceramics, because they require higher firing temperatures than the ceramic bodies and/or the addition of low-melting point compounds, which lower sintering temperature but also reduce mechanical and chemical properties.…”