Qhov tseem ceeb ntawm Metallization Ntawm Pob Zeb Diamond Nto

Txij li thaum ancient sij hawm, pob zeb diamond tau suav hais tias yog ib qho tseem ceeb heev ornaments. Txawm li cas los xij, nrog kev txhim kho ntawm cov cuab yeej siv niaj hnub no, cov khoom siv tshwj xeeb, thermal thiab hluav taws xob ntawm pob zeb diamond tau maj mam excavated, tig nws los ntawm cov txheej txheem yooj yim mus rau cov khoom siv tseem ceeb.

 

Qhov tseem ceeb ntawm metallization ntawm pob zeb diamond nto

Tab sis txawm hais tias lub pob zeb diamond nws tus kheej zoo npaum li cas, nws yuav nyuaj rau suab ib leeg --- vim hais tias cov particle loj ntawm hluavtaws pob zeb diamond yog me me uas yuav luag txhua daim ntawv thov yuav tsum tau siv lead ua bonding los yog implantation rau hauv substrate. Txawm li cas los xij, pob zeb diamond muaj lub zog sib cuam tshuam nrog ntau cov hlau, ceramics, thiab lwm yam, yog li lub zog sib txuas ntawm pob zeb diamond thiab matrix tsis zoo thiab pob zeb diamond yooj yim poob thaum ntxov.

Tam sim no, cov cuab yeej pob zeb diamond sawing feem ntau yog tsim los ntawm cov hmoov metallurgy. Sintering kub yog feem ntau mus txog 900 C. Thaum lub pob zeb diamond yog rhuab mus txog 700 C nyob rau hauv cov huab cua, nws pib oxidize thiab poob phaus thiab txo lub siab. Pob zeb diamond graphitization yuav siv qhov chaw siab tshaj 1000 C, uas cuam tshuam rau kev pab cuam ntawm pob zeb diamond.
Yog li, yuav ua li cas txhawm rau txhim kho oxidation tsis kam thiab tiv thaiv graphitization ntawm pob zeb diamond yog qhov tseem ceeb los txhim kho lub neej kev pab cuam ntawm cov cuab yeej pob zeb diamond hauv qhov kub thiab txias. Tam sim no, hlau txheej ntawm pob zeb diamond nto feem ntau yog siv nyob rau hauv tsev thiab txawv teb chaws los txo cov interfacial zog ntawm pob zeb diamond thiab matrix, thiab tsim ib tug ruaj khov tshuaj-metallurgical daim ntawv cog lus ntawm pob zeb diamond thiab binder los ntawm no txheej ntawm hlau. Binders ua lub luag haujlwm tseem ceeb hauv qab no:

1 Dispersion thiab tswj cov pob zeb diamond hais
2 Kom nthuav tawm pob zeb diamond hais rau ib qho twg;
3 Tiv thaiv pob zeb diamond hais kom poob tawm ntxov;
4. Tshaj tawm cov cua sov uas tsim tawm thaum lub sijhawm ua haujlwm sai kom tiv taus thiab cuam tshuam qhov cuam tshuam los ntawm pob zeb diamond ua haujlwm.