KTaO3 crytals: KTaO3 single crystals, KTaO3 substrates, KTaO3 wafers, KTaO3 crystal wafers /blanks/ingots, KTaO3 single crystal substrates, Potassium niobate crystals, Potassium niobate single crystals，Potassium niobate substrates, Potassium niobate wafers, Potassium niobate crystal wafers /blanks/ingots, Potassium niobate single crystal substrates, substrate for HTC application

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« MgO « SrTiO3 « (La,Sr)(Al,Ta)O3 « LaAlO3 « TGG « Al2O3 « GGG « Nb：SrTiO3 « TiO2 « Nd:SrTiO3 « Fe:SrTiO3; Substrates for Semiconductor Thin Film Growth
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KTaO3 (Potassium niobate) crystals and substrates

Potassium niobate (or KTaO3) single crystal has a stable cubic structure, KT crystals can be used to make the laser modulators and semiconductor components. KTaO3 crystals has no phase transition from absolute zero to its melting point (1645K), it’s crystal cell has a good match to YBCO system superconductors.

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Specifications
Basic Properties

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MgO

SrTiO3

MgAl2O4

(La,Sr)(Al,Ta)O3

Specifications
Materials	KTaO3 crystals
Orientation	＜100＞＜110＞＜111＞
Orientation error	±0.5deg.
Typical Size (mm)	10x3 10x5, 10x10, 15x15, 20x15, 20x20
Typical thickness (mm)	0.5mm, 1.0mm
Thickness tolerance	±0.05mm
Size tolerance	±0.1mm
Surface finish	SSP (single surface polished) or DSP (double surface polished)
Roughness	Ra<0.5nm

Properties
Formula	KTaO3
Point group	m3m
Cell parameters	0.3984nm
Melting point	1352.2 ℃
Density	7.025 g/cm3
Mohs hardness	6
Growth method	Czochralski method
Refractive index	2.226@633nm, 2.152@1539nm
Coefficient of thermal expansion	4.027 x 10-6/K
Specific heat (temperature J/(K g)	0.378
Transparent bands (nm)	380~4000

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KTaO3 (Potassium niobate) crystals and substrates

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