Tubooyinka dhoobada alumina ee aadka u hufan waa nooc ka mid ah walxaha dhoobada polycrystalline oo leh α-Al₂O₃ oo nadiif ah oo nadiif ah oo ah qaybteeda ugu weyn. Waxay ku gaadhaan gudbinta iftiinka sare iyaga oo tirtiraya daloolada gudaha iyo wasakhda. Muunad dhumucdiisu tahay 0.75 mm, wadarta gudbinta iftiinka ee kala duwanaanta iftiinka muuqda waxay gaari kartaa in ka badan 90%, iyo qaar ka mid ah alaabooyinka la hagaajiyay xitaa waxay gaaraan 95%.
Qalabkani waa sheyga dhoobada ah ee ugu horreeya ee horumarsan ee gaadha daahfurnaanta. Diyaarinteedu waxay u baahan tahay isticmaalka alaabta ceeriin ee alumina oo nadiif ah oo ka badan 99.99%, iyo ku darida qaddarka raadadka ee MgO, La₂O₃ ama Y₂O₃ sida qalabyada sinteering si kor loogu qaado cufnaanta iyo joojinta koritaanka xad dhaafka ah ee hadhuudhka.
Halbeegyada waxqabadka muhiimka ah:
Cufnaanta: ≥ 3.95 g/cm³
Xoog laabashada:> 350 MPa
Isku dhafka fidinta kulaylka: (6.5 ~ 8.5) × 10⁻⁶/℃
Heerkulka shaqada: Ilaa 1700°C ama ka sareeya
Dielectric joogto ah:> 9.8
Awood jabinta: 6.0 - 6.4 kV/mm
Goobaha codsiga ee ugu muhiimsan:
Tuubooyinka iftiinka soo saara (tuubooyinka arc) ee nalalka sodium-cadaadiska sare leh iyo nalalka halide biraha: Sababtoo ah iska caabin heerkul sare ah oo heer sare ah iyo iska caabinta daxalka uumiga birta alkali, ayaa si weyn loo isticmaalay in lagu beddelo tuubooyinka dhalada quartz-dhaqameedka.
Substrate-ka nalalka semiconductor ee LEDs: Sida beddelka qiimaha jaban ee sapphire, waxaa loo isticmaalaa baakadaha chip-ka LED.
Substrate-ka isku-dhafan ee Microwave: Ka faa'iidaysiga alaabtiisa dahaarka-sare ee
Goobta biomedical: Sida xirmooyinka dhoobada ee daaweynta lafaha.
Daaqadaha infrared iyo qaybaha indhaha: Waxay ku habboon yihiin agabka gudbinta mawjada ee heerkul sare iyo jawi aad u daxaloobay.
Qodobbada habka diyaarinta ee muhiimka ah:
Habka samaynta: Caadi ahaan isticmaal cadaadis qallalan oo ay weheliso cadaadis qabow oo isostatic ah si loo hagaajiyo cufnaanta meesha bannaan.
Habka sintering: Waxay u baahan tahay in lagu sameeyo jawi hydrogen ah ee sintering jawiga, ama la qabsado tignoolajiyada horumarsan sida sintering kulul, plasma sintering (SPS), oscillating hot pressing sintering (OPS), iwm.
Daaweynta dusha sare: Ka dib marka la jeexjeexo, waxay u baahan tahay in si sax ah loo nadiifiyo ilaa 11-13 darajo dhammays ah si loo yareeyo luminta firirka dusha sare.
ALUMINA CERAMIC TECH XOGTA
|
ITEM
|
UNIT
|
99.9 ALUMINA
|
|
Density
|
G/cm3
|
3.94
|
|
Bending Resistance
|
Mpa
|
500
|
|
Compressive Strength
|
Mpa
|
3300
|
|
Elasticity Modulus
|
Gpa
|
400
|
|
Shock Strength
|
Mpam/2
|
5.2
|
|
Vaporization Coefficient
|
M
|
12
|
|
Vickers Hardness
|
HV0.5
|
2000
|
|
Thermal Expansivity
|
10-6K-1
|
8.0
|
|
Conductivity
|
W/MK
|
28
|
|
Thermal Shock Resistance
|
AT℃
|
280
|
|
Maximum Service Temperature
|
℃
|
1750
|
|
20℃ Volume Resistance
|
Ω
|
≥1015
|
|
Dielectric Strength
|
KV/mm
|
30
|
|
Apparent Porosity
|
％
|
0
|
|
Permittivity
|
Er
|
10
|
|
Dielectric Loss Angle
|
tanδ
|
0.001
|
ALUMINA budada TECH XOGTA
|
ITEM
|
LS-110
|
LS-120
|
LS-130
|
LS-110F
|
LS-220
|
LS-210
|
|
LOI(％)
|
0.02
|
0.02
|
0.05
|
0.08
|
0.03
|
0.01
|
|
Na2O(％)
|
0.05
|
0.04
|
0.03
|
0.05
|
0.07
|
0.08
|
|
SiO2(％)
|
0.07
|
0.07
|
0.07
|
0.09
|
0.02
|
0.02
|
|
Fe2O3(％)
|
0.03
|
0.03
|
0.03
|
0.03
|
0.02
|
0.02
|
|
Al2O3(％)
|
99.9
|
99.9
|
99.9
|
99.9
|
99.9
|
99.9
|
|
average grain diameter(um)
|
1.7
|
2.1
|
2.2
|
1.1
|
2.7
|
2.9
|
|
αgrain diameter(um)
|
1-2
|
1-3
|
2-4
|
1-2
|
2-3
|
3-5
|
|
BET Surface Area(m2/g)
|
1.9
|
1.4
|
1.4
|
3.2
|
1.6
|
0.9
|
|
Pressure-induced volume density(g/cm3)*
|
2.22
|
2.27
|
2.31
|
2.29
|
2.22
|
2.32
|
|
Forming density(g/cm3)**
|
2.13
|
2.20
|
2.23
|
2.33
|
2.17
|
2.30
|
|
Sintering volume density(g/cm3)**
|
3.78
|
3.79
|
3.78
|
3.89
|
3.81
|
3.77
|
|
Line collection efficiency(％)
|
18.0
|
17.2
|
16.7
|
15.7
|
17.5
|
15.3
|
Kala xiriir Hada
