Water-Based Ceramic Coating for Thermal Oxidation and Corrosion

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing ceramic coatings for metal substrates exposed to high temperatures, humid, and saline environments suffer from thermal oxidation and corrosion, often using organic solvents that are environmentally harmful and inefficient.

Innovation Solution

A water-based inorganic ceramic coating comprising silicates, metallic oxysalts of group 6 (VIB) elements like tungsten or molybdenum, and silicon oxide, synthesized via a sol-gel process, providing improved anti-corrosive and mechanical properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If organic solvents and resins are used in ceramic coatings, then the coating can be applied to metal surfaces, but environmental pollution increases

Engineering Contradiction:

Improvecoating applicationVSAvoidenvironmental pollution

Core Design Contradiction:

Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent changes the fundamental parameter of the solvent system from organic to inorganic (water-based). The coating composition uses water as the primary solvent instead of organic solvents, fundamentally altering the chemical nature of the system while maintaining its function as a coating medium that can be applied to metal surfaces.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent converts the traditionally harmful organic solvent system into a beneficial water-based system. By replacing organic solvents with water and inorganic components, the harmful environmental effects are eliminated while the coating's protective function is enhanced through the formation of a ceramic layer.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Reliability

If conventional ceramic coatings are used on metal substrates, then thermal oxidation and corrosion protection is provided, but the coating lacks sufficient mechanical strength and anti-corrosive properties

Engineering Contradiction:

Improveprotection from thermal oxidation and corrosionVSAvoidmechanical strength and anti-corrosive properties

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The patent creates a composite coating system combining inorganic ceramic components (silicates, tungstates, molybdates, borates) with water-based solvents. This composite approach integrates multiple protective functions into a single coating layer, achieving both thermal/oxidation resistance and enhanced mechanical strength through the synergistic interaction of different inorganic compounds.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent modifies the chemical composition parameters of the coating by incorporating specific ratios of silicates, tungstates, molybdates, and borates. These compositional changes directly enhance the mechanical strength and anti-corrosive properties while maintaining the protective function against thermal oxidation.

Inventive Principle:

Principle #35Parameter changes

3Object-generated harmful factors

If water-based inorganic ceramic coating is used, then environmental friendliness is improved, but the coating composition and application process must be optimized

Engineering Contradiction:

Improveenvironmental friendlinessVSAvoidcoating composition and application process

Core Design Contradiction:

Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The patent optimizes the composition parameters by defining specific ranges for inorganic components (silicates, tungstates, molybdates, borates) and their ratios. This parameter optimization ensures proper coating formation, adhesion, and protective properties while maintaining the environmentally friendly water-based formulation.

Inventive Principle:

Principle #35Parameter changes

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 coating effectively prevents thermal oxidation and corrosion, extending the lifespan of metal substrates by enhancing their anti-corrosive and ceramic properties, while being environmentally friendly.

Implementation Method 1

a sol-gel process for synthesizing the coating

Methodology Applied

Scientific EffectSol-gel process: Sol

Implementation Method 2

The coating composition comprises: at least one silicate-based component, at least one acid, at least one metallic oxysalt

Methodology Applied

Scientific EffectHydrolysis: Hydrolysis

Data Source

PatentUS12534625B2Tungstate- and molybdate-based ceramic coating for protection of metal surfaces, preparation procedure and use thereof

Publication Date: 2026.01.27 CONTROLADORA MABE S A DE CV

AI summary

Inorganic ceramic coatings are disclosed whose chemical compositions comprise silicates, acids, metallic oxysalts such as tungstates and molybdates, water, and non-metallic oxides such as silicon oxide. The water-based inorganic ceramic coatings improve the ceramic, anti-corrosive and resistance properties of the metal substrates that are coated with same. A sol-gel process for synthesizing said the coatings comprises a process in which the non-metallic oxide, before being mixed with the rest of the components of the chemical compositions as claimed, can be pre-treated with hydrochloric acid and ammonium hydroxide, or can be sonicated to achieve a particle size in the range from approximately 160 to approximately 180 nm. A method for coating the metal parts with the inorganic ceramic coatings is also disclosed.