Lub luag hauj lwm tshiab ntawm Dawb Corundum nyob rau hauv Kev Kho Mob Technology Revolution
Tam sim no, nws yuav tsis tawg txawm tias poob - qhov zais cia nyob hauv 'dawb sapphire' txheej. Lub "dawb sapphire" nws tau hais txog yogdawb corundumsiv nyob rau hauv industrial steel polishing. Thaum no txhuas oxide siv lead ua, nrog ib tug Mohs hardness ntawm 9.0 thiab ib tug tshuaj purity ntawm 99%, nkag mus rau hauv kev kho mob teb, ib tug ntsiag to kiv puag ncig nyob rau hauv cov ntaub ntawv kho mob pib.
1. Los ntawm Industrial Sib tsoo log mus rau tib neeg kev sib koom ua ke: Ib qho kev sib tw hla ciam teb hauv cov ntaub ntawv tshawb fawb
Tej zaum koj yuav xav tsis thoob li cas cov abrasive qub siv rau kev txiav hlau tau dhau los ua tus hlub tshiab ntawm kev kho mob. Txhawm rau muab nws yooj yim, qhov tseem ceeb ntawm kev siv thev naus laus zis kho mob yog "biomimeticism" - nrhiav cov ntaub ntawv uas tuaj yeem ua ke nrog tib neeg lub cev thiab tiv taus ntau xyoo ntawm kev hnav thiab tsim kua muag.Dawb corundum, ntawm qhov tod tes, muaj "cov qauv muaj zog":
Nws hardness rivals uaspob zeb diamond, thiab nws hnav tsis kam tshaj peb npaug ntawm cov tsoos hlau pob qij txha.
Nws cov tshuaj inertness tsis tshua muaj zog, txhais tau tias nws tsis decompose, xeb, los yog ua rau tsis lees paub hauv tib neeg lub cev.
Nws daim iav zoo li qhov chaw ua rau nws nyuaj rau cov kab mob txuas, txo qhov kev pheej hmoo ntawm kev kis kab mob tom qab.
Thaum ntxov li 2018, pab pawg kho mob hauv Shanghai tau pib tshawb nrhiav kev sivdawb corundum-coatedpob qij txha. Tus kws qhia seev cev uas tau hloov tag nrho lub duav rov qab mus rau theem rau lub hlis tom qab kev phais. "Kuv cov pob qij txha hlau tau hnav kuv hnyav heev uas txhua kauj ruam zoo li tawg iav. Tam sim no, kuv yuav luag tsis nco qab lawv nyob ntawd thaum kuv seev cev." Tam sim no, lub neej ntawm cov nodawb corundum-ceramicCov pob qij txha sib xyaw tau tshaj 25 xyoo, ze li ob npaug ntawm cov khoom siv ib txwm muaj.
II. Tus "Tus Saib Xyuas Tsis Pom" ntawm Scalpel's Tip
Dawb corundum txoj kev kho mob tau pib nrog nws qhov kev hloov pauv ntawm cov cuab yeej kho mob. Hauv kev cob qhia cov cuab yeej siv kho mob, Tus Thawj Coj Tus Thawj Coj Li tau taw qhia rau kab ntawm gleaming phais forceps thiab piav qhia, "Tom qab polishing stainless hlau cov cuab yeej nrog.dawb corundum micropowder, qhov roughness saum npoo yog txo kom tsawg dua 0.01 microns - du dua li kaum-txhiab lub thickness ntawm tib neeg cov plaub hau. Qhov kev txiav ntug zoo kawg no ua rau kev txiav txiav kom du zoo li rab riam kub los ntawm butter, txo cov ntaub so ntswg puas tsuaj los ntawm 30% thiab ua kom cov neeg mob kho tau zoo.
Ib daim ntawv thov kev hloov pauv ntau dua yog nyob rau hauv kev kho hniav. Kev lig kev cai, thaum siv pob zeb diamond abrasive burs rau cov hniav sib tsoo, cov cua sov uas tsim los ntawm kev sib txhuam siab tuaj yeem ua rau cov hniav puas. Txawm li cas los, tus kheej-sharpening cuab yeej ntawmdawb corundum(txhim kho cov npoo tshiab thaum siv) kom ntseeg tau tias lub bur tseem tseem ntse. Cov ntaub ntawv kho mob los ntawm lub tsev kho mob kho hniav hauv Beijing qhia tau hais tias thaum lub sij hawm kho cov kwj dej hauv paus siv cov corundum burs dawb, qhov kub ntawm cov hniav tsuas yog nce li 2 ° C, deb tshaj qhov kev txwv thoob ntiaj teb kev nyab xeeb ntawm 5.5 ° C.
III. Implant Coatings: Muab cov khoom siv dag zog ua "Pob zeb diamond Armor"
Qhov kev xav txog kev kho mob tshaj plaws ntawm corundum dawb yog nws lub peev xwm los muab cov khoom siv dag zog rau "lub neej thib ob." Siv plasma spraying technology, dawb corundum micropowder yog yaj-txhaj tshuaj mus rau titanium alloy sib koom nto ntawm qhov kub thiab txias, tsim ib txheej txheej 10-20 microns tuab. Lub ingenuity ntawm cov qauv no yog nyob rau hauv:
Cov txheej txheej tawv tawv tiv thaiv kev sib txhuam txhua hnub.
Lub hauv paus tawv tawv absorbs qhov kev cuam tshuam uas tsis xav tau.
Cov qauv microporous txhawb kev loj hlob ntawm cov pob txha nyob ib puag ncig.
Kev simulation hauv German chav kuaj pom tias tom qab 5 lab gait cycles, hnav lub hauv caug prosthesis coated nrog dawb corundum tsuas yog 1/8 ntawm cov ntshiab titanium. kuv lub teb chaws tau suav nrog cov thev naus laus zis no hauv nws qhov "Green Channel for Innovative Medical Devices" program txij li xyoo 2024. Hauv tsev tsim cov pob txha dawb corundum-coated hip pob qij txha yog 40% pheej yig dua li cov khoom lag luam tuaj txawv teb chaws, tau txais txiaj ntsig ntau pua txhiab tus neeg mob pob txha.
IV. Dawb Corundum "High-Tech" nyob rau hauv Clinic ntawm lub neej yav tom ntej
Kev Kho Mob Amidst lub thev naus laus zis hloov pauv, corundum dawb tab tom qhib rau pem hauv ntej tshiab:
Nano-scaledawb corundum polishing Cov neeg ua haujlwm tau siv rau hauv kev tsim cov gene sequencing chips, ua kom paub tseeb qhov tseeb ntawm 99% mus rau 99.99%, txhawb kev kuaj mob qog noj ntshav thaum ntxov.
3D-printed dag vertebrae suav nrog cov pob txha pob txha dawb corundum muab ob zaug lub zog ntawm cov pob txha ntuj, muab kev cia siab rau cov neeg mob qog nqaij hlav.
Biosensor coatings leverage cov khoom insulating ntawm dawb corundum kom ua tiav xoom-kev cuam tshuam kev sib kis ntawm lub hlwb-lub computer interface teeb liab.
Pab pawg tshawb fawb Shanghai tseem tau tsim biodegradable dawb corundum pob txha screws-uas pib muab kev txhawb nqa nruj thiab maj mam tso kev loj hlob-txhim kho aluminium ions raws li cov pob txha kho. "Nyob rau yav tom ntej, kev phais pob txha yuav tshem tawm qhov xav tau ntawm kev phais thib ob kom tshem tawm cov ntsia hlau," said Dr. Wang, tus thawj coj ntawm txoj haujlwm, thaum nthuav tawm cov ntaub ntawv sim los ntawm luav tibias: tom qab yim lub lis piam, cov ntsia hlau ntim tau txo los ntawm 60%, thaum qhov ceev ntawm cov pob txha tsim tshiab yog ob npaug ntawm pawg tswj hwm.