MATERIAL PROPERTY YTTRIA(Y2O3)

Appearance

Dense

Color

White

Transparent

Contents(%)
99.9

99.9

Applications
Density
g/cm3
4.91
5.02
Water absorption
%
0
0
MECHANICAL
Hardness
9.8N
Vickers(98N)
GPa
Flexural Strength
RT
1000¡ÆC
1200¡ÆC
1400¡ÆC
JIS-R1601
JIS-R1604
JIS-R1604
JIS-R1604
MPa
120
140
Compression Strength
JIS-R1608
MPa
    
Young's Modulus
JIS-R1602
MPa
160
170
Poisson's Ratio
JIS-R1602
0.31
Fracture Toughness
SEPB
JIS-R1607
MP
1.2
1.4
THERMAL
Linear Expension Coelficient
RT~100¡ÆC
RT~400¡ÆC
RT~800¡ÆC
JIS-R1618
JIS-R1618
JIS-R1618


7.2(~900¡ÆC)
9.1
Thermal Conductivity
20¡ÆC
JIS-R1611
W(m.k)
14
14
Specific Heat
 
JIS-R1611
J(kg.k)
Thermal Shock Resistance
 
JIS-R1615
¡âT¡ÆC
150
150
ELECTRICAL
Valume Electrical Resistance
kv/mm
5.1
Volume Resistivity
20¡ÆC
300¡ÆC
500¡ÆC
JIS-C2141
§Ù. §¯
1014
1014
Dielectic Constant
1MHz
12.5
11.2
Dieleclical Loss Angle
1MHz
x10-2
<10
Loss factor
x10-4
    
CHEMICAL
Acetic Acid
(60%)90¡ÆC
WT Loss
   
Sulphuric Acid
(95%)95¡ÆC
WT Loss
   
Caustic Soda
(30%)80¡ÆC
mg/cm2/day