In the manufacturing of modern heating elements,
Silver palladium pasteAs a key material, its performance plays a decisive role in the overall performance of the heater. There is a close relationship between the conductivity and heating performance of silver palladium slurry. Advanced Institute (Shenzhen) Technology Co., Ltd. has long been committed to the research and innovation of electronic pastes, and has accumulated rich experience in studying the properties of silver palladium pastes.
1、 Basic characteristics of silver palladium paste
Silver palladium paste is composed of silver powder, palladium powder, and organic carrier. Silver has extremely high conductivity and is a good conductive material, providing a low resistance channel for current transmission. Palladium has good chemical stability and antioxidant properties, which can enhance the performance stability of silver palladium slurry in harsh environments such as high temperatures. Organic carriers play a role in dispersing and bonding silver and palladium powders, enabling the silver palladium paste to be smoothly formed during printing, coating, and other processes, and forming a dense conductive network after sintering.
2、 The intrinsic relationship between conductivity and heating performance
According to Joule's law, the heat generated by current passing through a conductor is proportional to the square of the current, the resistance of the conductor, and the duration of the current (Q=I ² Rt). For silver palladium paste in heater components, conductivity is inversely proportional to resistance. The higher the conductivity of silver palladium paste, the lower its resistance. At the same voltage and energization time, low resistance means that more heat is generated when current passes through, thereby improving the heating performance of the heater.
For example, in some small portable heaters, if silver palladium slurry with high conductivity is used, it can quickly heat up in a short period of time, meeting the user's demand for instant heating. On the contrary, if the conductivity of silver palladium paste is low and the resistance is high, not only will the heating efficiency be low, but it may also lead to energy waste and even affect the service life of the heating element due to excessive heating.
3、 Research achievements of Advanced Institute (Shenzhen) Technology Co., Ltd
The R&D team of Advanced Institute (Shenzhen) Technology Co., Ltd. conducted extensive experiments and analysis to deeply explore the factors affecting the conductivity of silver palladium slurry, and proposed targeted methods to improve conductivity and optimize heating performance.
（1） Optimize the slurry formula
Researchers have found that the ratio of silver powder to palladium powder has a significant impact on conductivity. After multiple experiments, they found the optimal range of silver palladium ratio, which maximizes the conductivity while ensuring the stability and oxidation resistance of the slurry. At the same time, the types and contents of organic carriers were optimized, and organic carriers that can better disperse silver and palladium powders and completely evaporate during sintering without residual impurities affecting the formation of conductive networks were selected.
（2） Improve the preparation process
In the preparation process of silver palladium slurry, Advanced Institute (Shenzhen) Technology Co., Ltd. adopted advanced ball milling technology to precisely control the ball milling time and speed, making the particle size distribution of silver powder and palladium powder more uniform, reducing the contact resistance between particles, and thus improving the conductivity. In addition, optimizing sintering process parameters, such as controlling sintering temperature and time, ensures that the silver palladium slurry forms a dense and continuous conductive network after sintering, further improving conductivity and heating performance.
Through the unremitting efforts of Advanced Institute (Shenzhen) Technology Co., Ltd., the high-performance silver palladium slurry developed has been widely used in the market. The heating element made of this silver palladium paste has significantly improved heating efficiency, reduced energy consumption, and significantly improved product reliability and stability, providing strong technical support for the development of the heating industry.
The above data is for reference only, and specific performance may vary due to production processes and product specifications.
