99.99% Nano-alumina mai tauri na yumbu

1. Saboda ƙarfin ƙarfin foda na nano-alumina, yana magance ƙarancin amfani da kewayowar ƙarancin zafi. Daga cikinsu, nanocomposites na nano-aluminum oxy-carbide (SiC) sune mafi shahara, kuma ƙarfin lanƙwasawarsu yana daga. Yumburan alumina guda ɗaya sun ƙaru daga 300-400 MPa zuwa 1 GPa, kuma ƙarfin karyewar kayan ya ƙaru da fiye da 40%.

2. Daidaiton zafi: Ƙara nano-alumina a cikin yumbu ba wai kawai yana inganta aikin sintering na substrate ba, har ma yana inganta daidaiton zafi na kayan substrate na alumina sosai, kuma daidaiton zafi yana inganta sau 2-3.

3. Yawan yawa: A yayin da ake yin gyaran foda, ana iya cika foda nano-α-Al2O3 a cikin ramukan foda na micron alumina, wanda ke rage girman ramuka; matsin lamba na gyaran yana ƙaruwa, kuma ana iya rage adadin ramuka, ta haka ne ake inganta yawan tayi na yumbu yana inganta yawan yawa da halayen injiniya na yumbu na alumina bayan an yi sintering.

4. Rage zafin sintering: ƙara nano-a-Al2O3 yana haɓaka aikin sintering kuma yana taimakawa wajen rage zafin sintering. Lokacin da zafin sintering ya kai 1450 °C, ƙarfin lanƙwasa da taurin karyewa sun kai matsakaicin.

5. Ƙara ƙaramin adadin nano-a-Al2O3 zai iya inganta halayen injina na kayan yadda ya kamata. Ana yin simintin ƙarfe na alumina a zafin 1450 °C. Idan adadin ƙarin ya kai 10%, ƙarfin lanƙwasa shine 415 mPa kuma ƙarfin karyewa shine 4.1 MPa·m^1. /2.