Lead-Tellurium-Lithium-Titanium Oxide Paste for Silver Reduction

The patent applies composite materials by combining silver with lead-tellurium-lithium-titanium-oxide glass frit to create a thick film paste composition. The glass frit acts as a matrix that binds silver particles and provides adhesion to the substrate, allowing reduced silver content while maintaining electrical conductivity and mechanical bonding. This composite approach resolves the contradiction by distributing silver particles within the glass matrix, achieving reliable electrical performance with lower silver quantity.

The patent employs parameter changes by modifying the chemical composition parameters of the glass frit (specific ratios of PbO, TeO2, Li2O, and TiO2) to optimize the paste's firing behavior, adhesion, and electrical properties. By adjusting these compositional parameters, the invention achieves good electrode performance with reduced silver content, directly addressing the contradiction between silver quantity and electrical reliability.

The lead-tellurium-lithium-titanium-oxide glass frit serves as a binding matrix that provides strong adhesion to the substrate. The glass frit contains functional oxides that enhance chemical bonding and mechanical attachment, allowing the electrode to maintain strong adhesion with reduced silver content. The composite structure distributes the adhesion function across the glass matrix rather than relying solely on silver-metal bonding.

The glass frit acts as an intermediary material between the silver particles and the substrate. It provides a bonding interface that facilitates adhesion while allowing reduced silver content. The glass frit mediates the interaction between the metallic silver and the ceramic substrate, enabling strong bonding through its chemical and physical properties without requiring high silver concentrations.

The composite paste composition uses lead-tellurium-lithium-titanium-oxide glass frit as a functional matrix that compensates for reduced silver content. The glass frit provides a conductive pathway network and maintains electrical performance through its composition and firing characteristics. This composite approach enables cost reduction via lower silver content while preserving electrical reliability through the glass matrix's properties.

The patent modifies the chemical parameters of the glass frit composition (PbO 25-65 wt%, TeO2 25-70 wt%, Li2O 0.1-5 wt%, TiO2 0.1-5 wt%) to optimize firing behavior and electrical properties. By carefully controlling these compositional parameters, the invention achieves good electrical performance with reduced silver content, directly resolving the contradiction between silver quantity and electrical reliability.

The glass frit composite provides strong adhesion through its chemical composition and firing characteristics. The lead-tellurium-lithium-titanium-oxide system forms a robust bonding matrix that adheres well to the substrate, compensating for reduced silver content. The composite structure distributes adhesion forces across the glass matrix, enabling cost-effective formulations with maintained bonding strength.

The glass frit serves as an intermediary bonding layer that maintains adhesion with reduced silver content. It provides chemical and physical bonding mechanisms that are independent of silver concentration, allowing the electrode to achieve strong adhesion through the glass matrix's properties rather than relying on silver-metal bonding alone.