Budada cad ee alumina ee la isku daray waxaa laga sameeyaa budada alumina ee saafiga badan leh iyadoo lagu dhalaalayo heerkulka sare, lagu qaboojinayo kiristaalka, ka dibna la burburinayo. Budada cad ee aluminium oksaydhka ah ee la isku daray ayaa si adag loo xakameeyay si loo ilaaliyo qaybinta cabbirka hadhuudhka iyo muuqaalka joogtada ah.
Qaybinta cabbirka badarka ee budada cad ee alumina ee la isku daray waa mid cidhiidhi ah. Ka dib marka la sameeyo habaynta, budada corundum cad oo saafi ah oo sare leh waxay leedahay badar buuxa, geeso fiiqan iyo geeso, hufnaan shiidid sare, iyo dhalaal dhalaal sare. Hufnaanta shiididdu aad ayay uga sarreysaa xoqidda jilicsan sida silica.
Sababtoo ah muuqaalka wanaagsan, dusha sare ee shayga la safeeyey wuxuu leeyahay dhammaystir sare. Si ballaaran ayaa loogu isticmaalaa shiididda iyo nadiifinta semiconductors, kiristaallada, looxyada wareegga, aluminiumka, birta, birta aan daxalka lahayn, dhagaxa, galaaska, iwm. Gaar ahaan warshadaha shiididda iyo nadiifinta birta aan daxalka lahayn, aluminiumka, naxaasta iyo agabka kale ee birta iyo warshadaha galaaska, waxay si buuxda u muujinaysaa waxqabadka sare.
Cad, α kiristaal ka badan 99%, daahirnimo sare, adkeysi sare, iyo adkeysi sare, xoog goyn xoog leh, xasillooni kiimiko oo xooggan, iyo dahaar adag.
| Qaab kiristaal ah | nidaamka saddex-geesoodka ah ee α |
| Cufnaanta dhabta ah | 3.90 g/cm3 |
| Adagaanshaha Micro-adag | 2000 - 2200 Kg/mm2 |
| Adkaanshaha Mohs | 9 |
| Tilmaamaha cabbirka walxaha iyo halabuurka | |
| JIS | 240#,280#,320#,360#,400#,500#,600#,700#,800#,1000#,1200#,1500#,2000#,2500#,3000#,3500#,4000#,6000#,8000#,10000#,12500# |
| Heerka Yurub | F240,F280,F320,F360,F400,F500,F600,F800,F1000,F1200,F1500,F2000,F2500,F3000,F4000,F6000 |
| Heerka Qaranka | W63,W50,W40,W28,W20,W14,W10,W7,W5,W3.5,W2.5,W1.5,W1,W0.5 |
| Halabuurka kiimikada | ||||
| Badar | Halabuurka kiimikada(%) | |||
|
| Al2O3 | SiO2 | Fe2O3 | Na2O |
| 240#--3000# | ≥99.50 | ≤0.10 | ≤0.03 | ≤0.22 |
| 4000#-12500# | ≥99.00 | ≤0.10 | ≤0.05 | ≤0.25 |
Ma jiraan wax saameyn ah oo ku saabsan midabka qaybaha la warshadeeyay.
Waxaa loo isticmaali karaa hababka ay haraaga budada birta si adag looga mamnuucay.
Qaabaynta miraha ayaa aad ugu habboon hawlgallada ciidda qoyan iyo nadiifinta.
1. Bacriminta ciidda, nadiifinta iyo shiididda birta iyo galaaska.
2. Buuxinta rinjiga, dahaarka aan xirashada lahayn, dhoobada, iyo dhalaalka.
3. Samaynta dhagax saliid ah, dhagax shiidi, giraangiraha shiidi, warqadda ciidda iyo maro emery ah.
4. Soo saarista xuubka shaandhada dhoobada ah, tuubooyinka dhoobada ah, iyo saxannada dhoobada ah.
5. Soo saarista dareeraha dhalaalka, shamaca adag iyo shamaca dareeraha ah.
6. Loogu talagalay isticmaalka dabaqa aan xirnayn.
7. Shiidi iyo dhalaalin horumarsan oo ah kiristaalo piezoelectric ah, semiconductors, bir aan miridh lahayn, aluminium iyo biraha kale iyo kuwa aan biraha ahayn.
8. Faahfaahinta iyo halabuurka
Haddii aad qabtid wax su'aalo ah. Fadlan xor u noqo inaad nala soo xiriirto.