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Item
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Unit
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A-95
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A-75
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MS-1
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Bulk Density
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ambient temperatures
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g/cm³
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≥3.64
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≥3.2
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≥2.7
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Helium Leak Rate(Tightness)
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pa.m3/s
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≤1×10 ^-11
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——
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——
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Flexural Strength
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ambient temperatures
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Mpa
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336.1
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280
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160
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Average Linear Expansion Coefficient
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（20~500）℃
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1/℃
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7.27×10^-6
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6.21×10^-6
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8.48×10^-6
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（20~800）℃
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7.73×10^-6
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——
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——
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Dielectric Constant
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Mhz20℃
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9.4
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8.7
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7.5
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Volume Resistivity
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100℃
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Ω.cm
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5.2×10^15
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4.5×10^13
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3.7×10^13
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300℃
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5.6×10^14
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——
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——
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||
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500℃
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4.8×10^13
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——
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——
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Dielectric Loss
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20℃
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2.4×10^-4
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≤10×10^-4
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≤8×10^-4
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DC Breakdown Strength
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KV/mm
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42.0
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34
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28
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Thermal Stability
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ambient temperatures~800℃
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|
通過pass
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——
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——
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Chemical Stability
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10%HCI
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Mg
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4.657
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——
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——
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1:9NaOH
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0.075
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——
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——
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Area
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Gauge length
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Maximum load
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Maximum stress
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Unit
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mm2
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mm
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kN
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MPa
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1
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122.0000
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100.0000
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13.1016
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107.390
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2
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122.0000
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100.0000
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16.9062
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138.576
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3
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122.0000
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100.0000
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13.1273
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107.601
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4
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122.0000
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100.0000
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14.4523
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118.462
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5
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122.0000
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100.0000
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12.2820
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100.672
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6
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122.0000
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100.0000
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13.2656
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108.735
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7
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122.0000
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100.0000
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13.8773
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113.749
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8
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122.0000
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100.0000
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17.4781
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143.263
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Average value
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14.3113
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117.306
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SEM image of metallized layer was enlarged by 4000 times SEM image of ceramic part enlarged by 500 times
