Semiconductor siv cov khoom siv dub alumina ceramic caj npab

Semiconductor siv accessories dub alumina ceramic caj npab Featured duab

Lus piav qhia luv luv:

Kev hnav tsis kam ntawm alumina ceramics yog tib yam li ntawm corundum, mus txog Mohs hardness qib 9, thiab hnav tsis kam yog piv rau cov khoom siv superhard alloys. Lub tshav kub tsis kam ntawm alumina ceramics muaj cov yam ntxwv ntawm me me thermal expansion coefficient, siab txhua yam muaj zog thiab zoo thermal conductivity. Nyob rau tib lub sijhawm, alumina tau siv dav hauv cov khoom siv kho tshuab siv nyob rau hauv qhov kub thiab txias vim nws qhov kev ua haujlwm kub zoo heev (txog 1700 ℃).

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Alumina ceramics

1. Siab hardness

Rockwell hardness yog HRA80-90, lub hardness yog qis dua pob zeb diamond, deb tshaj qhov hnav-resistant steel thiab stainless hlau.

2. Kev hnav zoo heev

Ntsuas los ntawm cov chaw tshawb fawb kev tshaj lij, nws qhov hnav tsis kam yog sib npaug rau 266 npaug ntawm manganese hlau. Gaoming cam khwb cia hlau 171.5 zaug, raws li peb ntau tshaj kaum xyoo ntawm kev soj ntsuam cov neeg siv khoom, nyob rau hauv tib txoj kev ua haujlwm, tuaj yeem txuas lub neej kev pab cuam ntawm cov cuab yeej tsawg kawg kaum zaug ntxiv.

3. Lub teeb yuag

Nws qhov ceev ntawm 3.5g / cm3 tsuas yog ib nrab ntawm cov hlau, uas tuaj yeem txo cov khoom siv thauj khoom.