| abstract |
Molding including a base material having a silicon nitride-containing release layer that is resistant to wear, impact, and scratch and is temperature-stable and used for melting crucibles used in silicon processing for solar cell batteries Provision of an article includes a substrate having a release layer that adheres securely, said release layer being 92-98 wt%, preferably 94-98 wt%, more preferably more than 95-97 wt% nitriding Silicon (Si 3 N 4 ) and 2-8 wt%, preferably 2-6 wt%, more preferably less than 3-5 wt% of silicon dioxide (SiO 2 ) and alkali metal compounds in the form of flux. A residual oxygen content of 150 ppm or less and a total oxygen content of less than 5% by weight, and at least 10 HB 2.5 / 3 according to DIN EN ISO 6506-1 Molded articles having a degree. [Selection figure] None |