Skip to header
OHARA INC.
English
Products and ServiceAbout OHARAInvestor RelationsContact Us

Products and Service
 
New Electronics Products
 

CLEARCERAM-Z EX

OHARA added a new product line-up to its CLEARCERAM series.
The newly introduced “CLEARCERAM-Z EX” product shows “a state of the art” low thermal expansion characteristic. The new product features extremely low temperature dependence of thermal expansion in 0 to 50degree C, which is less than half of the present high spec grade (CLEARCERAM-Z HS).
At practical usage, CLERACERAM-Z EX absorbs more environmental temperature changes and may relax users’ effort to control it.


CLEARCERAM-Z Regular HS EX
Thermal Properties Coefficient of Thermal(0~50°C) α (10-7/°C) 0.0±1.0 0.0±0.2 0.0±0.1
Thermal Conductivity k (W/m·°C) 1.51 1.54 1.49
Mechanical Properties Young's Modulus E (GPa) 90 92 91
Rigidity (GPa) 36 37 36
Poisson Ratio 0.25 0.25 0.26
Knoop Hardness Hk 600[6] 590[6] 620[6]
Abrasion Aa 62 62 62
Bending Strength (MPa) 116 122 126
Specific Gravity d 2.55 2.55 2.54
Optical Properties Refractive Index nd 1.546 1.546 1.544
1550nm 1.528 1.528 1.526
Abbe Number νd 55.5 54.9 55.8
Internal Transmittance (10mmt) 500nm >0.85 >0.82 >0.85
980nm >0.98 >0.98 >0.98
1550nm >0.98 >0.98 >0.98
Chemical Properties Water Resistance (Powder) RW(P) Class2 Class1 Class1
Acid Resistance (Powder) RA(P) Class1 Class1 Class1
Alkali Resistance (Powder) Ralk(P) 0.25% 0.19% 0.18%
*Values are subject to change for improvement.
 
To the top of the page
 

Products and Service
 
 
|  Site Map  |  Protection of the Personal Information  |  Location  | (c) OHARA INC. All rights reserved.