Zirconia porous (ZR-95-VG)
95% ZrO2
Porous zirconia ceramic has the same chemical composition as the dense zirconia grade. The advantage of a porous ceramic is the slightly better thermal shock resistance. The stresses that occur in the body during heating are absorbed more by the open pores. Zirconium oxide crucibles should be stamped in an aluminum oxide crucible (quality KR-98-VG) with an investment material. This significantly extends the service life. This quality was developed and successfully used for precious metals (especially platinum) and superalloys.
SPECIAL PROPERTIES
- Zirconium oxide is a semiconductor
- high mechanical strength
- thermal insulation capacity at >1,700 °C
- high temperature resistance up to over 2000 °C
- low thermal conductivity
- high corrosion resistance
- Good to very good chemical resistance to aluminium, beryllium, bismuth, cobalt, nickel, platinum…
Directional Analysis
Zirconia porous
Quality ZR-95-VG
Quality ZR-95-VG