물성표 이트리아(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°C
1200°C
1400°C
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°C
RT~400°C
RT~800°C
JIS-R1618
JIS-R1618
JIS-R1618


7.2(~900°C)
9.1
Thermal Conductivity
20°C
JIS-R1611
W(m.k)
14
14
Specific Heat
 
JIS-R1611
J(kg.k)
Thermal Shock Resistance
 
JIS-R1615
△T°C
150
150
ELECTRICAL
Valume Electrical Resistance
kv/mm
5.1
Volume Resistivity
20°C
300°C
500°C
JIS-C2141
Ω. ㎝
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°C
WT Loss
   
Sulphuric Acid
(95%)95°C
WT Loss
   
Caustic Soda
(30%)80°C
mg/cm2/day