TXAX GTX

A MA KA CT GP C10
Name of Substance Potassuim hexatitanate Potassuim hexatitanate Potassuim hexatitanate Calcium titanate Potassuim hexatitanate/
Calcium titanate
Chemical Formula K2Ti6O13 K2Ti6O13 K2Ti6O13 CaTiO3 K2O・nTiO2・mSiO2・rMgO K2Ti6O13/
CaTiO3
Structure Tunnel Tunnel Tunnel Perovskite Amorphous Tunnel/
Perovskite
Shape Plate-like Plate-like Plate-like Plate-like Powder or
scale-like
Spherical
Size (μm) Average length: 150
Average width: 30
Average length: 65
Average width: 13
Average length: 45
Average width: 10
Average length: 50
Average width: 12
Average: 〜250 Average particle diameter: 45
pH 8 8 8 9 9 8
Specific surface area (m2/g) 0.8 1.5 4.5 1.5 0.1 3.4
True density (g/cm3) 3.5 3.6 3.6 4.0 2.8 3.6
Bulk density (g/cm3) 0.5 0.2 0.2 0.5 1.0 0.9
Melting point (℃) 1310〜1350 1310〜1350 1310〜1350 1990※ 1050〜1100 1310〜1350
Moisture content (mass%) <0.2 <0.4 <0.4 <0.2 <0.4 <0.4
Mohs hardness 3 4 4 5※ 5 4
Thermal conductivity (W/m・k) 1.7(at760℃)※ 1.7(at760℃)※ 1.7(at760℃)※ 4.0※ 0.8(at300℃)
Specific heat (J/kg・k) 920(at400℃) 920(at400℃) 920(at400℃) 710※ 1000(at300℃)
Linear expansion coefficient
(x10-6/k)
6.8 6.8 6.8 14.1
Volume resistivity
(Ω・cm)
3.3×1015 3.3×1015 3.3×1015 1.0×1012
Dielectric constant ε 3.5〜3.7※ 3.5〜3.7※ 3.5〜3.7※ 169※

※Literature Values