99.99% seramiiki siri ike nke nano-alumina

1. N'ihi oke ike nke ntụ nano-alumina, ọ na-edozi adịghị ike nke oke ojiji nke oke okpomọkụ na-ebelata. N'ime ha, nanocomposites nano-aluminum oxy-carbide (SiC) bụ ndị kacha pụta ìhè, ike flexural ha sikwa na Seramiki alumina nke otu-phase mụbara site na 300-400 MPa ruo 1 GPa, ike mgbawa nke ihe ahụ mụbara site na ihe karịrị 40%.

2. Nkwụsi ike nke okpomọkụ: Mgbakwunye nke nano-alumina na seramiiki abụghị naanị na ọ na-eme ka arụmọrụ sintering nke substrate ahụ ka mma, kamakwa ọ na-eme ka nkwụsi ike nke ihe substrate alumina dịkwuo mma nke ukwuu, a na-emekwa ka nkwụsi ike nke okpomọkụ dịkwuo mma ugboro abụọ ruo atọ.

3. Njupụta: N'usoro ịkpụzi ntụ ntụ, enwere ike ijupụta ntụ nano-α-Al2O3 n'ime oghere nke ntụ micron alumina, nke na-ebelata nha oghere; nrụgide ịkpụzi na-abawanye, a pụkwara ibelata ọnụọgụ oghere, si otú a na-eme ka njupụta nke embrayo seramiiki ka mma na njupụta na njirimara mekaniki nke seramiiki alumina mgbe a gbasasịrị ya.

4. Mbelata okpomọkụ nke sintering: mgbakwunye nke nano-a-Al2O3 na-akwalite ọrụ sintering ma na-enyere aka belata okpomọkụ sintering. Mgbe okpomọkụ sintering dị 1450 °C, ike flexural na ike mgbawa na-eru oke kachasị.

5. Mgbakwunye obere nano-a-Al2O3 nwere ike ime ka ihe ndị dị na ya ka mma nke ọma. A na-ete seramiiki alumina na okpomọkụ 1450 °C. Mgbe ego mgbakwunye ahụ bụ 10%, ike flexural bụ 415 mPa na ike mgbawa ahụ bụ 4.1 MPa·m^1. /2.