Translucent Alumina ceramics

Compare with conventional product

N-9000NS tube
15mm outer dia.×6mm inner dia.×56mm

N-9000NS tube
4mm outer dia.×2mm inner dia.×170mm

N-9000NS Complex Box Shape

N-9000NS Wafer Lift Pins

Nishimura Advanced Ceramics produce Translucent Alumina Ceramics with high-intensity. It has high total light transmittance.

As N-9000NS is produced from pure fine-grain Alumina, it has a higher intensity than other translucent aluminas.

It can also be used as a substitute material for sapphires for its high intensity.

Characteristics

Material			Alumina	Sapphire
Nishimura Ref. NO			N-9000NS	━
Component (Al2O3)			>99.99%	99.99%
Color			Milky white with some Translucency	━
Density		g/cm³	3.99	━
Water Absorption		％	0	0
Total Light Transmittance (JISK K7105)		%	83.66& or more	Same or better
Crystal Structure		–	Multi Crystal	Sigle Crysta;
Mechanical Properties	Vickers Hardness	GPa	21.4	Similar
	Bending Strength	MPa	820	Weaker
	Compressive Strength	MPa	5800	Weaker
	Tensile Strength	MPa	213	Weaker
	Impact Strength	MPa	0.7	━
Electrical Properties	Volume Resistivity	Ω･cm	2.0×10¹⁶（20～100℃）	Same
	Permittivity	1MHz	10	━
	Dielectric Loss Tangent	1MHz	＜0.001	Same
	Dielectric Strength	kV/mm	＞10	━
	Te Value	℃	1000	━
Thermal Properties	Thermal Expansion Coefficient	10-⁶/℃	8.2	━
	Heat Thermal Conductivity	W/m･K	37	━
	Max Operation Temperature	℃	1200	━
	Thermal Shock Resistance	℃	200	━

more competitive price than crystal sapphire (In the case of complex shape or bar shape)
High intensity
It can be produced by green machining method / CIM / Mold press.
Smaller crystals compared to translucent alumina or transparent alumina ceramics.
N-9000NS has great smooth surface. (Ra)
N-9000NS can be used as substitute of single crystal sapphires