发明名称 |
OXIDBESCHICHTETES SCHNEIDWERKZEUG |
摘要 |
According to the present invention there is provided a body at least partially coated with one or more refractory layers of which at least one layer essentially consist of alpha -Al2O3. Said alpha -Al2O3-layer consists of essentially equiaxed grains with an average grain size of < 1 mu m and with a bimodal grain size distribution with coarser grains with an average grainsize in the interval 0.5 - 1 mu m and finer grains with an average grainsize of <0.5 mu m. The Al2O3-layer further contains striated zones containing titanium (>5 at %) but no nitrogen or carbon. This particular microstructure is obtained by temporarily stopping the gases needed for the growth of the Al2O3-layer and introducing TiCl4. <IMAGE> |
申请公布号 |
AT277205(T) |
申请公布日期 |
2004.10.15 |
申请号 |
AT20010126183T |
申请日期 |
2001.11.05 |
申请人 |
SANDVIK AKTIEBOLAG |
发明人 |
LJUNGBERG, BJOERN;BUDZYNSKI, LARS-ANDERS |
分类号 |
B23C5/16;B23B27/14;B23P15/28;C23C16/40;C23C16/44;C23C16/455;C23C30/00;(IPC1-7):C23C30/00;B32B27/14 |
主分类号 |
B23C5/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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