Semiconductive ceramic thick film heating material

Abstract

A semi-conducting thick ceramic film as heat generating material is prepared through proportional mixing function phase with adhesive phase, adding organic carrier to prepare slurry, preparing electrothermal heat-generating material, coating it on substrate and high-temp sintering. Said function phase is composed of one of Ge, Si and C or more single elements and multiple oxides, which play the role of characteristic modifiers.

Description

technical field [0001] The invention belongs to the technical field of thick film electronic materials and electric heating. technical background [0002] Thick-film electronic materials and technologies in the prior art have been widely used, mainly in thick-film integrated circuit technology and electronic chip component technology. These thick film materials are mainly used as conductors and resistive and capacitive components for information processing, and have no electric heating function. Electric heating technology has a long history. For a long time, most of the heating elements used in household appliances and fields such as industry, agriculture, medicine, and scientific research are electric heating wires or electric heating tubes. Traditional resistance wires have low heating efficiency and short life, and cannot operate at low voltage ( Such as working under 12V) and other shortcomings. The heating elements developed in the 1970s to replace electric heating t...

AI Technical Summary

Problems solved by technology

However, the above-mentioned materials have low heating temperature, some (such as PTC ceramic chips) have lead pollution, and cannot work under no-load conditions, which limits their application.

The oxide thick-film heating materials developed in modern times also have unstable performance. When the surface temperature exceeds 600°C, the power decays quickly and the material square resistance is large.