Quartz with silicon nitride (Q95F)

Q95F is a specially devel­oped mate­r­ial grade based on a high-purity quartz compound combined with sili­con nitride. This advanced mate­r­ial solu­tion was engi­neered to perform in appli­ca­tions where conven­tional mate­ri­als reach their limits partic­u­larly under extreme ther­mal condi­tions, in chem­i­cally aggres­sive envi­ron­ments, and in scenar­ios demand­ing absolute purity, dura­bil­ity, and longevity. Q95F plays a pivotal role in the melt­ing of precious metals, espe­cially plat­inum and plat­inum-based alloys. In modern high-temper­a­ture processes such as induc­tive melt­ing, temper­a­tures exceed­ing 1900 °C are reached within seconds. While many mate­ri­als exhibit ther­mo­me­chan­i­cal weak­nesses under these condi­tions, Q95F demon­strates excep­tional stabil­ity, high resis­tance to ther­mal cycling, and prolonged service life. These prop­er­ties make Q95F an ideal mate­r­ial for container crucibles used to melt valu­able metals effi­ciently and safely. A signif­i­cant advan­tage of Q95F is its “lotus effect” in inter­ac­tion with molten plat­inum. The melt effec­tively beads off the ceramic surface this not only simpli­fies crucible clean­ing but also signif­i­cantly reduces mate­r­ial loss. As a result, the precious metal recov­ery process becomes much more effi­cient. At the same time, crucible wear is reduced, which leads to a substan­tial exten­sion of oper­a­tional life. Q95F is partic­u­larly valued in sensi­tive and demand­ing indus­trial sectors such as medical tech­nol­ogy, where the high­est stan­dards of mate­r­ial purity are required and ceramic compo­nents must not release any cont­a­m­i­nants. In preci­sion cast­ing appli­ca­tions where dimen­sional accu­racy and mate­r­ial compat­i­bil­ity are essen­tial Q95F also demon­strates its strengths. Thanks to its high dimen­sional stabil­ity and ther­mal resis­tance during the cast­ing process, the mate­r­ial is ideally suited for use as a crucible mate­r­ial or as part of cast­ing chan­nel ceram­ics, where it reli­ably guides molten metal while protect­ing against both ther­mal and chem­i­cal stress. Q95F belongs to the class of refrac­tory ceram­ics, specif­i­cally designed to retain their mechan­i­cal prop­er­ties under extreme ther­mal loads. The combi­na­tion of high-purity quartz and ceramic binders imparts outstand­ing chem­i­cal resis­tance, partic­u­larly against aggres­sive melts such as plat­inum, gold, palla­dium, and other noble metals. Even in contact with fluxes or oxidiz­ing atmos­pheres, Q95F main­tains its struc­tural integrity. As a German manu­fac­turer of high perfor­mance ceramic compo­nents, GTS brings exten­sive expe­ri­ence in the produc­tion and process­ing of ultra­pure quartz and quartz compos­ites. The devel­op­ment of Q95F is the result of years of research and devel­op­ment and stands as a bench­mark for the inno­va­tion, preci­sion, and qual­ity orien­ta­tion char­ac­ter­is­tic of German engi­neer­ing. In addi­tion to stan­dard crucibles, GTS also offers customized solu­tions such as container crucibles, special­ized shaped ceram­ics, and ceramic cast­ing systems based on Q95F each tailored to specific customer processes and require­ments. In prac­ti­cal appli­ca­tions, Q95F convinces with high process reli­a­bil­ity, long service life, and mini­mal inter­ac­tion with molten mate­ri­als. For compa­nies focused on reli­a­bil­ity, cost effec­tive­ness, and top-tier mate­r­ial perfor­mance, Q95F repre­sents a modern, forward look­ing solution—whether in precious metal process­ing, medical tech­nol­ogy, invest­ment cast­ing, or high-temper­a­ture cast­ing systems.