Sialon quasi monodimension nanometer material and its preparation method
A technology of nanomaterials and raw materials, which is applied in the field of Sialon quasi-one-dimensional nanomaterials and its preparation, can solve problems such as low yield, many impurities, and complicated processes, and achieve high yield, good crystallization uniformity, and simple preparation process Effect
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Embodiment 1
[0016] The Sialon quasi-one-dimensional nanomaterial is composed of the following components according to weight percentage: 55% hydrogen-containing silicone oil, 43% ethylenediamine, and 2% Al powder. The preparation method of Sialon quasi-one-dimensional nanomaterials, a. Mix 198ml of hydrogen-containing silicone oil, 155ml of ethylenediamine and 6 grams of Al powder, and react in a reaction kettle. The reaction temperature is controlled at 0-100°C, and the solvent used is 500ml of tetrahydrofuran. and n-hexane 250ml, stirring continuously at room temperature for 8 to 12 hours, reacting to form Si-Al-O-N-C polymer; Inject nitrogen, the nitrogen flow rate is 200-400ml / min, the temperature process is within the temperature range of room temperature to 750°C, the heating rate is 5°C / min, and the temperature is kept at 750°C for 1 hour, and within the temperature range of 750-1000°C, The heating rate is 5°C / min, and the temperature is kept at 1000°C for 1 hour to obtain Si-Al-O-...
Embodiment 2
[0019] A Sialon quasi-one-dimensional nanometer material and its preparation method. Its raw materials are composed of the following components according to weight percentage: 37% of hydrogen-containing silicone oil, 60% of ethylenediamine, and 3% of Al powder. The steps are: a. Mix 169ml of hydrogen-containing silicone oil, 274ml of ethylenediamine and 15g of Al powder, and react in a reaction kettle. The reaction temperature is controlled at 0-100°C. Under constant stirring for 8 to 12 hours, the reaction forms Si-Al-O-N-C polymer. Other steps and processing condition are identical with specific embodiment 1. Sialon nanobelts with a thickness of 50nm, a width of 300nm, and a length of hundreds of μm were formed by crystallization in a graphite crucible.
Embodiment 3
[0021]A Sialon quasi-one-dimensional nanometer material and its preparation method. Its raw materials are composed of the following components according to weight percentage: 45% of hydrogen-containing silicone oil, 45% of ethylenediamine, and 10% of Al powder. The steps are: a. Mix 68ml of hydrogen-containing silicone oil, 70ml of ethylenediamine and 15g of Al powder, and react in a reaction kettle. The reaction temperature is controlled at 0-100°C. Under constant stirring for 8 to 12 hours, the reaction forms a Si-Al-O-N-C polymer; b. The product obtained in the previous step is placed in a graphite crucible, and the graphite crucible is placed in an atmosphere pressure sintering furnace, and nitrogen gas is introduced, and the nitrogen pressure in the furnace Controlled at 1.5MPa, controlled temperature at 1200°C for 3 hours, and crystallized in a graphite crucible to form Sialon quasi-one-dimensional nanomaterials, which are Sialon nanobelts with a thickness of 80nm, a widt...
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