Airíonna agus úsáidí gailliam a thuiscint i gceann nóiméad

The properties of metal gallium: element symbol Ga, atomic number 31, is a group IIIA metal. The density is 5.904 g/cm³, the melting point is 29.76°C (302.91 K, 85.57°F), and the boiling point is 2204°C (2477 K, 3999°F). Solid gallium is blue-gray, and liquid gallium is silver-white. Gallium is hard and brittle at low temperature, but melts when it exceeds room temperature, soluble in acid and alkali, slightly soluble in mercury, and highly corrosive. Gallium is relatively stable in dry air, and an oxide film will form on the surface to prevent continued oxidation, and it will lose its luster in humid air. The freezing point of gallium is very low. When it is converted from liquid to solid, the expansion rate is 3.1%. Gallium can infiltrate glass, so it should not be stored in glass containers, but in plastic containers.

Staid tharla an ghailliam: Is é 0.0015% ábhar an ghailliam sa domhan's screamh. Tá dáileadh an ghailliam sa nádúr sách scaipthe, agus tá an chuid is mó acu i mianraí gaolmhara, go príomha i mbáicsít, agus méid beag i stáin, sa tungstain agus i luaidhe-since.

Use of gallium: At present, the consumption fields of metal gallium in my country include semiconductors and optoelectronic materials, solar cells, alloys, medical equipment, magnetic materials, etc. Among them, the semiconductor industry has become the largest consumption field of gallium, accounting for about 80% of the total consumption. With the rapid development of the downstream application industry of gallium, especially the semiconductor industry and solar cell industry, the demand for metal gallium will also grow steadily in the future.

1.1 Ábhair Leathsheoltóra

Is miotail annamh é Gallium le leá íseal agus fiuchphointe ard, agus tugtar"cnámh droma an tionscail leictreonaic" air. Is ábhair leathsheoltóra ardchaighdeáin iad comhdhúile Gailliam agus úsáidtear iad go forleathan sa tionscal optoelectronics agus tionscal cumarsáide micreathonn chun cumarsáid micreathonn agus comhtháthú micreathonn a mhonarú, optaic infridhearg agus feistí braite infridhearg, ciorcaid chomhtháite, dé-óid astaithe solais, etc. Mar shampla, tá an solas dearg agus glas a fheicimid ar ríomhairí astaithe ag dé-óidí fosfíd ghailliam.

1.2 Cealla gréine

1.3 Cóimhiotail

1.4 Réimse leighis

Is féidir Gailiam a úsáid i ndiagnóisic leighis, mar úsáid chiotráite gailliam (67Ga) chun ailse scamhóg agus ae a dhiagnóiseadh. Is féidir cóimhiotail ghailliam a chur i bhfeidhm freisin ar fheistí leighis agus ábhair leighis, mar shampla cóimhiotail ghailliam a úsáid mar ábhair líonadh fiacail, ag baint úsáide as" cóimhiotail ghailliam indium" chun teirmiméadair a dhéanamh, etc.