A kind of chip type oxygen sensor for motorcycle and preparation method thereof
An oxygen sensor and motorcycle technology, applied in the field of sensors, can solve problems such as the difficulty of making the width small enough, the width cannot be small enough, and poor output signal stability, and achieve compact structure, ensure stability, improve sensitivity and The effect of precision
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Embodiment 1
[0035]A chip oxygen sensor for motorcycles, comprising a porous and protective layer 1, a functional layer 2, a diffusion layer 3 and a heating layer 4 which are sequentially stacked and sintered from top to bottom; one end of the porous and protective layer 1 is a porous Alumina substrate 11, the other end of the porous and protective layer 1 is the first alumina substrate 12, the functional layer 2 includes the first zirconia substrate 21, the inner surface on both sides of the first zirconia substrate 21 An electrode 22 and an external electrode 23, wherein the external electrode 23 is located on the first zirconia substrate 21 close to the porous and protective layer 1 side, and the porous alumina substrate 11 completely covers the external electrode 23, the first alumina substrate 12 covers the external electrode leads, the diffusion layer 3 includes a second zirconia substrate 31 and a diffusion channel 32 arranged above the second zirconia substrate 31, and the heating l...
Embodiment 2
[0041] A method for preparing a sheet-type oxygen sensor for motorcycles, comprising the following steps:
[0042] 1) Preparation of zirconia ceramic slurry, alumina ceramic slurry and porous alumina ceramic slurry:
[0043] Prepare according to the raw materials of the following mass percentages:
[0044] Zirconia ceramic slurry: 75% of yttria with a content of 3mol% yttria stabilized zirconia, 15% of yttrium oxide and 10% of alumina are formulated as inorganic components, and then added to account for 1% of the total mass of inorganic components dispersant, an organic solvent accounting for 40% of the total mass of the inorganic components, a binder accounting for 5% of the total mass of the inorganic components, and a plasticizer accounting for 5% of the total mass of the inorganic components; the zirconia ceramic slurry is formed after ball milling;
[0045] Alumina ceramic slurry: 80% alumina and 20% sintering aids are prepared as inorganic components, and then add dispe...
Embodiment 3
[0052] A method for preparing a sheet-type oxygen sensor for motorcycles, comprising the following steps:
[0053] 1) Preparation of zirconia ceramic slurry, alumina ceramic slurry and porous alumina ceramic slurry:
[0054] Prepare according to the raw materials of the following mass percentages:
[0055] Zirconia ceramic slurry: 92% of yttria with a content of 8mol% yttria stabilized zirconia, 3% of yttrium oxide and 5% of alumina are formulated as inorganic components, and then added to account for 8% of the total mass of inorganic components dispersant, an organic solvent accounting for 50% of the total mass of the inorganic components, a binder accounting for 10% of the total mass of the inorganic components, and a plasticizer accounting for 10% of the total mass of the inorganic components; the zirconia ceramic slurry is formed after ball milling;
[0056] Alumina ceramic slurry: 97% of alumina and 3% of sintering aid are prepared as inorganic components, and then add d...
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