Nadiifinta sare ee alumina xaashida dhoobada : Xalka sare ee codsiyada warshadaha horumarsan. Alumina saxannada dhoobada ah, go'yaal, iyo qaybo dhoobada wareeg ah ayaa ah qaybo dhoobada wax qabadkeedu sarreeyo oo laga sameeyay aluminium saafi ah oo sarreeya. Alaabooyinkan waxaa loogu talagalay inay buuxiyaan shuruudaha adag ee xoogga farsamada ee aadka u wanaagsan, xasilloonida kulaylka, iyo caabbinta kiimikada ee qaybaha warshadaha kala duwan. Haddi ay ahaan lahayd injineernimada saxda ah, warshadaha elektaroonigga ah, ama jawiga kulaylka sareeyo, xaashiyaha dhoobada ah iyo saxanadaha ayaa bixin kara xalal la isku halayn karo oo waara. Waxqabadka maaha mid ka hooseeya kan dhoobada Zirconia & Aluminium Nitride ceramic. Tilmaamaha ugu muhiimsan ee xaashida dhoobada alumina ee nadiifka ah waxaa ka mid ah qallafsanaanta aad u fiican, sifooyinka dahaarka ee muuqda, iyo caabbinta xirashada iyo daxalka. Guryahani waxay ka dhigaan doorashooyin ku habboon codsiyada u baahan labadaba adkeysi iyo waxqabad sare marka lagu jiro xaalado aad u daran. Waraaqaha aluminiumku waxay ku yimaadaan dhumucyo iyo cabbirro kala duwan si ay u daboolaan baahiyaha mashaariicda gaarka ah. Sidoo kale, saxannada dhoobada alumina iyo qaybaha dhoobada wareegta ah ayaa dhamaantood si sax ah loo soo saaray si loo hubiyo joogtaynta iyo saxnaanta isticmaalka. Marka la eego ka kooban walxaha, taarikada dhoobada alumina-nadiifinta sare waxay ka kooban tahay alumina saafi ah (Al₂O₃) oo leh nadiif ka badan 99.5%. Isku-dhafkan sare ee aluminiumku wuxuu hubinayaa in alaabtu ilaaliso sharafta qaabdhismeedka xitaa heerkulka sare. Intaa waxaa dheer, taarikada dhoobada waxay leeyihiin koronto yar, taas oo ka dhigaysa inay ku habboon yihiin codsiyada elektarooniga ah iyo kuwa la xidhiidha dahaarka. Saxanadaha dhoobada ah ayaa inta badan loo adeegsadaa nidaamka xiridda, xirmooyinka, iyo qaybaha kale ee farsamada ee u baahan dhaqdhaqaaq la'aan iyo xoog sare. Habka wax soo saarka ee qaybahan dhoobada ah waxay isticmaalaan tignoolajiyada sintering horumarsan si loo gaaro cufnaanta ugu fiican iyo porosity-ka ugu yar. Tani waxay ka dhigaysaa alaabtu maaha mid adag oo keliya laakiin sidoo kale waxay u adkaysataa shoogga kulaylka iyo walbahaarka farsamada. Saxannada dhoobada aluminium ee nadiifka ah ee nadiifka ah ayaa si weyn loogu isticmaalaa hawada, baabuurta, iyo warshadaha wax soo saarka semiconductor, halkaas oo saxnaanta iyo isku halaynta si adag looga baahan yahay. Taarikada alumina waxaa caadi ahaan loo isticmaalaa sariflayaasha kulaylka, qaybaha foornada, iyo wax soo saarka qalabka kale ee heerkulka sarreeya. Marka la eego xaaladaha dalabka, kala duwanaanta xaashida dhoobada alumina-nadiifinta sare leh waa mid aad u ballaaran. Tusaale ahaan, goobta elektiroonigga ah, xaashiyaha dhoobada ah waxaa loo isticmaalaa sida substrates ee wareegyada soo noqnoqda sare sababtoo ah sifooyinka dielectric ee aadka u fiican. Warshadaha caafimaadka, waxaa loo adeegsadaa qalabka qalliinka iyo aaladaha la geliyo iyadoo ay ugu wacan tahay isqabqabsigooda noole iyo iska caabbinta jeermiska. Intaa waxaa dheer, qaybta tamarta, waxaa loo isticmaalaa sida walxaha dahaarka ee nidaamyada gudbinta korantada iyo qaybaha batteriga. Jawaab celinta isticmaalayaasha ee xaashida dhoobada alumina ee nadiifka sare ah ayaa guud ahaan aad u wanaagsan. Macaamiil badan ayaa qaddariya awoodda alaabta ee ah in aanay ku xumaanayn deegaannada adag. Isticmaalayaasha waxay soo sheegaan in saxanadaha dhoobada alumina ay si fiican u qabtaan codsiyada culeyska sare leh waxayna sii wadi karaan qaabka iyo shaqeynta wakhti dheer. Sidoo kale, saxannada dhoobada ayaa lagu ammaanaa saxnimadooda iyo isku-duubnidooda, taas oo gacan ka geysaneysa hagaajinta waxtarka guud ee nidaamka isku dhafan.
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
|
Kala xiriir Hada
