Method for preparing compact-type porous ceramic-based titanium electrothermal film

A porous ceramic and pocket-sized technology, which is applied in the direction of electric heating devices, ceramic products, ohmic resistance heating, etc., can solve the problems of complex preparation process and environmental pollution of porous metal electric heating film, and achieve specific strength, safety, non-toxicity, simple preparation process, greater than strength effect

Active Publication Date: 2016-06-22
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems of complex preparation process and environmental pollution of the existing porous metal electric heating film, and provide a method for preparing a pocket-sized porous ceramic-based titanium electric heating film, which can be applied to the electric heating device of a pocket-sized medical atomization device

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Take 20g of titanium powder with a particle size of about 1um and 40g of 6% polyvinyl alcohol aqueous solution and put them into a stainless steel ball mill tank with a rotation speed of 300r / min and a ball milling time of 12h to finally obtain a stable titanium slurry with a porosity of 70%. , Diatom mud ceramics with a pore size of 1-10um, using a spraying process, spray titanium slurry on the porous diatom mud ceramic substrate, level it at room temperature for 10 minutes, and dry it in an oven at 80 ° C. According to the resistance value, it can be used multiple times Spraying, drying samples were sintered in a vacuum tube furnace with a vacuum of 10 -3 Below pa, the sintering temperature is 800°C, the time is 2h, and the porous ceramic base titanium heating film can be obtained by natural cooling, and the resistance is about 5-20Ω.

Embodiment 2

[0022] Take 20g of titanium powder with a particle size of about 1um and 40g of 6% polyvinyl alcohol aqueous solution and put them into a stainless steel ball mill tank with a rotation speed of 300r / min and a ball milling time of 12h to finally obtain a stable titanium slurry with a porosity of 50%. , Alumina ceramics with a pore size of 10-20um, using a spraying process, spray titanium slurry on the porous alumina ceramic substrate, level it at room temperature for 10 minutes, dry it in an oven at 80°C, and spray it multiple times according to the resistance value. High-purity argon is used as the protective gas to sinter in a tube furnace, the sintering temperature is 1000°C, and the time is 1h. The porous ceramic-based titanium heating film can be formed by natural cooling, and the resistance is about 10-30Ω.

Embodiment 3

[0024] Take 10g of titanium hydride with a particle size of about 5um and 40g of 4% polyvinyl butyral ethanol solution and put them into a stainless steel ball mill tank with a rotational speed of 300r / min and a ball milling time of 1h to finally obtain a stable Titanium hydride slurry, select alumina ceramics with a porosity of 40% and a pore diameter of 20-30um, use a spraying process, spray titanium slurry on the porous alumina ceramic substrate, level it at room temperature for 10 minutes, and bake it in an oven at 80°C Dry, it can be sprayed multiple times according to the resistance value, and the dried sample is sintered in a vacuum tube furnace with a vacuum of 10 -3 Below pa, heat at 500°C for 2 hours to completely decompose titanium hydride into elemental titanium, sinter at 600°C for 8 hours, and naturally cool down to form a porous ceramic-based titanium heating film with a resistance of about 2-10Ω.

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Abstract

The invention belongs to a preparation method of a titanium film, belongs to the field of electrothermal films and particularly relates to a method for preparing a compact-type porous ceramic-based titanium electrothermal film. The method comprises the following steps of: mixing and ball-grinding titanium or titanium hydride powder, a polyving akohol aqueous solution or a polyvinyl butyral ethanol solution in a certain ratio so as to obtain uniform and stable titanium slurry; then spraying the titanium slurry on a porous ceramic base, drying at a low temperature, and performing high-temperature sintering in the presence of inert gas or under high-vacuum protection, thereby obtaining the compact-type porous ceramic-based titanium electrothermal film. The preparation method is low in preparation process cost, high in production efficiency, high in operability and free from environmental pollution, and conforms to the sustainable development policy; the prepared compact-type porous ceramic-based titanium electrothermal film has the advantages of high electrothermal conversion efficiency, safety, no toxicity, better atomization effect, small driving voltage and the like, and can be applied to electrothermal devices of compact-type medical atomization devices and the like.

Description

technical field [0001] The invention belongs to a method for preparing a titanium film, and belongs to the field of electric heating films, in particular to a method for preparing a pocket-sized porous ceramic-based titanium electric heating film. Background technique [0002] Nebulization inhalation therapy has the advantages of quick effect, less drug dose, and less side effects, and is widely used in clinical medicine. Its working principle is to disperse the drug (solution or powder) into tiny mist or particles with an atomization device, suspend it in the gas, and enter the respiratory tract and lungs to clean the airway, humidify the airway, and provide local treatment. (spasmodic, anti-inflammatory, expectorant) and the purpose of comprehensive treatment. In recent years, the global smog has been rampant, and the number of people with respiratory diseases has increased. Based on the advantages of nebulization inhalation therapy, a pocket-sized portable nebulization i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/88H05B3/22H05B3/12
CPCC04B41/009C04B41/5133C04B41/88C04B2111/90H05B3/12H05B3/22C04B41/4539C04B41/455C04B38/00C04B35/14C04B35/10
Inventor 王金斌李沛钟向丽宋宏甲
Owner XIANGTAN UNIV
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