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Lanthanum Aluminate (LaAlO3)

Lanthanum Aluminate (LaAlO3)

Country/Region china
Company Advanced Engineering Materials Limited
Categories Chromium Metal Powder
Update 2019-07-13 16:35:24
ICP License Issued by the Chinese Ministry
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Lanthanum Aluminate (LaAlO3) is a single crystal, which is the most important material in industrialization and large-size high-temperature superconducting thin flim substrate. It can be obtained 2'' diameter and lager single crystal and substrates by Czochralski growth method. It is well matched with YBaCuO high-temperature superconducting thin flim materials in lattice with lower dielectric constant, low loss microwave. There are great potentail applications in production of high-temperature superconducting microwave electronic devices.

Physical Properties

Crystal systemHexagonal (at room temperature); Cube (>435℃)
Lattice (A)Hexagonal a=5.3575, c=13.22; Cubic a=3.821
Growth MethodCzochralski
Hardness6-6.5 (Mohns)
Melting point2080℃
Density(g/cm3)6.52 g/cm3
Thermal expansion9.4 (x 10-6/℃)
Permittivity= 21
Loss tangent (10ghz)~ 310 -4 @ 300k, ~ 0.610 -4 @ 77k
Color and appearanceBrown-yellow to brown polishing a substrate with natural twinned domain by annealing conditions
Chemical stabilityInsoluble in Mineral acid at room temperature, souble in h3po4 when temperature is higher than 150℃
FeatureSuitable fpr microwave electronics


Size10x3, 10x5, 10x10, 15x15, 20x20,Dia 15, Dia 20, Dia 1'', Dia 2'', Dia 2.6''
Thickness0.5 mm, 1.0 mm
PolishedSSP or DSP
Orientation<100>, <110>, <111>
Redirection precision0.5°
Redirection the edge2°(special in 1°)
Angle of crystallineSpecial size and orientation are avaiable for request


100 clean bag, 1000 exactly clean room

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