次のリンクより、本文、このサイトの共通メニューにスキップします。

TXAX

TXAX is potassium hexatitanium represented by the chemical formula K2Ti6O13. TXAX is a highly safe "green" material supplied in the form of plate-like large-diameter long fibers which are different from whiskers (needle-like single crystal fibers). It is a highly functional ceramic material which was developed and commercialized by Kubota based on the results of a collaborative research project with the National Institute for Research in Inorganic Materials (NIRIM), then affiliated with the former Science and Technology Agency.

Features of TXAX

1. Chemically and Physically Stable Crystal Structure
heat resistance, heat insulation at high temperatures, wear resistance, and friction stability. Furthermore, a tunnel-like crystal structure gives it high chemical and physical stability.
2. < Melting Method> : Kubota Proprietary Technique
Kubota developed a proprietary technique called the "melting method" which can produce polycrystals of large diameter and length. It has already identified various applications, including brake and clutch friction materials in machines such as automobiles, reinforcing materials for plastic and metal products, and coating materials.
Potassium hexatitanate
Crystal structure
Crystal system Monoclinic
Space group C2/m
Structure Tunnel
Lattice constant a(nm) 1.558
b(nm) 0.382
c(nm) 0.911
β(°) 99.76
Molecules per unit cell 2
TXAX-A TXAX-MA
Scanning electron
microscope image
Chemical name Potassium hexatitanate Potassium hexatitanate
Chemical formula K2Ti6O13 K2Ti6O13
Structure Tunnel Tunnel
Shape Plate-like shape Plate-like shape
Color Light yellow Light yellow
Size Mean length:140~160
Mean width:28~32
Mean thickness:(10)
Mean length:65~75
Mean width:13~15
Mean thickness:(3)
pH 7~9 7~9
Specific surface area (m2/g) 0.5~1.5 1.0~2.0
Particle density(g/cm3 3.5~3.6 3.5~3.6
Bulk density(g/cm3 0.3~0.6 0.2~0.3
Melting point(℃) 1310~1350 1310~1350
Moisture content(mass%) <0.2 <0.4
Mohs hardness 3~4 3~4
Thermal conductivity *(W/m・K) 1.7(at760℃)
Specific heat *(J/kg・K) 920
Linear expansion coefficient *(×10-6/K) 6.8
Volume resistivity *(Ω・cm) 3.3×1015
Permittivity ε * 3.5~3.7

* literature data


Related Technologies

Titanic acid compounds have many useful material properties. By combining Kubota's shape control technologies and synthesis / modification technologies, we can expect the development of materials with new properties.

Contact Us

To inquire about a product, service, maintenance, or any other matter, please contact your nearest Kubota location directly by phone or contact us by email. Before making an inquiry, we recommend that you check out our customer support information, including FAQs, as you might be able to find the answer to your question more quickly there.

ページトップへ戻る