Non-stick ceramic coating comprising diamonds and coloured mica
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Solution Overview
Problem
Ceramic non-stick coatings used in cookware and other applications face challenges in maintaining non-stick properties when exposed to high temperatures, scratches, and salty cooking media, particularly in terms of salt water boiling resistance, leading to degradation and loss of durability.
Innovation Solution
A ceramic coating composition incorporating 0.2 wt% to 2 wt% of a diamond additive with blue, green, or red coloured mica particles, combined with a base ceramic coating composition, enhances the non-stick durability and resistance to salt water boiling, abrasion, and scratches, while maintaining thermal conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional ceramic non-stick coatings are used, then the coating provides initial non-stick properties, but the non-stick properties are quickly lost due to salt water boiling and thermal degradation
Solution Approach 1:
The patent applies composite materials by combining diamond particles with ceramic coating materials to create a diamond-containing ceramic coating. This composite structure provides both the non-stick properties of ceramic and the enhanced durability, heat resistance, and abrasion resistance of diamond, thereby maintaining non-stick performance under salt water boiling and thermal conditions that would degrade conventional ceramic coatings alone.
Solution Approach 2:
The patent changes the chemical composition parameters of the ceramic coating by incorporating diamond particles at specific concentrations (0.1-2 wt%). This parameter change transforms the coating's properties, providing improved thermal stability, abrasion resistance, and non-stick durability while maintaining the desired non-stick functionality under harsh cooking conditions.
2Reliability
If diamond particles are added to improve thermal conductivity and abrasion resistance, then thermal conductivity improves, but the coating complexity increases
Solution Approach 1:
The patent optimizes the concentration parameter of diamond particles within a specific range (0.1-2 wt%) to achieve improved thermal conductivity and abrasion resistance. By controlling this parameter, the patent enhances performance while managing coating complexity, as the diamond particles are incorporated into the existing ceramic coating formulation without requiring fundamentally new coating structures or processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The improved ceramic coating composition demonstrates significantly longer-lasting non-stick performance under domestic use conditions, with enhanced resistance to salt water boiling and abrasion, maintaining high thermal conductivity and durability beyond existing diamond-containing ceramic coatings.
Implementation Method 1
the enhanced ceramic coating disclosed in WO 2016/188946 has an improved non-stick durability, in particular the enhanced ceramic coating maintained its non-stick performance to a greater extent when subject to successive thermal shock treatments
Implementation Method 2
heat and heat shock damage contribute to the loss of the non-stick effect over time
Implementation Method 3
the addition of the silicone oil to the sol-gel aims to improve its non-stick properties, but its benefit is temporary and the initial non-stick properties are quickly lost
Data Source
AI summary
The present invention relates to an enhanced ceramic coating composition comprising a base non-stick ceramic coating composition and 0.2 wt% - 2 wt % diamond additive (DA) with wt% compared with the total weight compared of the ceramic coating composition, wherein the diamond additive comprises diamond and mica particles, and wherein said mica particles comprise coloured mica particles, such as red and/or green and/or blue coloured mica particles. It also relates to a method of coating an artefact with the improved ceramic coating, and an artefact provided with a dry film coating containing an improved ceramic coating prepared using an improved ceramic coating composition of the invention. An artefact coated with the improved ceramic coating has the combined advantages of durable non-stick, scratch resistance and abrasion resistance.