ZRCI耐火材料型RS-99-60和RS-99-45由99%的氧化铝组成。这些“全氧化铝”材料具有强大,均匀,刚性,耐火材料的结构,由α氧化铝纤维和高纯度无机粘合剂组成。型RS-99-60和RS-99-45具有高纯度氧化铝键,使其适用于高真空和减少石英的环境,例如具有H2大气压的电力金属和MIM炉。它们在升高的温度下也具有高电阻率,使其能够与电阻加热元件直接接触。它们展示了优越的热强度和尺寸稳定性至1650°C(3000°F)。RS-99-60的密度为60磅/平均(1GM / CC),RS-99-45的密度为45磅/平方英尺(.72GM / CC)ZRCI耐火材料薄薄的纤维增强陶瓷复合材料是可用作电路板,圆柱和自定义形状。它们具有精细开放的孔结构,高孔隙度和低导热率。这些材料是真正的复合层压材料。它们可以构造成近网复杂形状。 They can also be machined to tight exacting tolerances with ordinary shop tools and equipment. Their superior machinability and dimensional stability plus low heat capacity make them ideal for use as setters, supports and process fixtures in both continuous and batch firing furnaces. They contain no organic binders and will not smoke or produce odors when heated. They show excellent resistance to chemical attack and are not affected by oil or water. They are, however, affected by hydrofluoric acid, phosphorous acid and strong alkalis.