Ad
related to: zirconium oxide vs zirconia gas fuel systemholley.com has been visited by 10K+ users in the past month
Search results
Results from the WOW.Com Content Network
During this time when the hot cladding is exposed to steam some oxidation of the zirconium will occur to form a zirconium oxide which is more zirconium rich than zirconia. This Zr(O) phase is the α-phase, further oxidation forms zirconia. The longer the cladding is exposed to steam the less ductile it will be.
[11] [12] [13] Zirconia stabilized with yttria (yttrium oxide), known as yttria-stabilized zirconia, can be used as a strong base material in some full ceramic crown restorations. [12] [14] Transformation-toughened zirconia is used to make ceramic knives. [15] Because of the hardness, ceramic-edged cutlery stays sharp longer than steel edged ...
Rolls-Royce is developing solid-oxide fuel cells produced by screen printing onto inexpensive ceramic materials. [48] Rolls-Royce Fuel Cell Systems Ltd is developing an SOFC gas turbine hybrid system fueled by natural gas for power generation applications in the order of a megawatt (e.g. Futuregen). [citation needed]
The most common electrolyte, again similar to solid-oxide fuel cells, is a dense ionic conductor consisting of ZrO 2 doped with 8 mol-% Y 2 O 3 (also known as YSZ, ytrium-stabilized zirconia). Zirconium dioxide is used because of its high strength, high melting temperature (approximately 2700 °C) and excellent corrosion resistance.
Nuclear Fuel Complex supplies zircaloy clad uranium oxide fuel assemblies and zirconium alloy structural components for all 14 operating atomic power reactors in India. [2] The Hyderabad plant has a capacity to produce 250 tons of UO 2 per year and is expected to expand to a 600 tons per year capacity.
Yttria-stabilized zirconia (YSZ) crystal structure. Yttria-stabilized zirconia (YSZ) is a ceramic in which the cubic crystal structure of zirconium dioxide is made stable at room temperature by an addition of yttrium oxide. These oxides are commonly called "zirconia" (Zr O 2) and "yttria" (Y 2 O 3), hence the name.
Corrosion resistance of zirconium alloys is enhanced by intentional development of thicker passivation layer of black lustrous zirconium oxide. Nitride coatings might also be used. Whereas there is no consensus on whether zirconium and zirconium alloy have the same oxidation rate, Zircaloys 2 and 4 do behave very similarly in this respect.
The most common oxide is zirconium dioxide, ZrO 2, also known as zirconia. This clear to white-coloured solid has exceptional fracture toughness (for a ceramic) and chemical resistance, especially in its cubic form. [37] These properties make zirconia useful as a thermal barrier coating, [38] although it is also a common diamond substitute. [37]
Ad
related to: zirconium oxide vs zirconia gas fuel systemholley.com has been visited by 10K+ users in the past month