Ceramic Polishing Composition Using Silica Abrasives and pH Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing polishing compositions using diamond abrasives for ceramic components are expensive and prone to causing scratches, making it difficult to achieve high-grade mirror finishing.

Innovation Solution

A polishing composition with a pH of 6.0 to 9.0, containing silica abrasives with a zeta potential difference of 20 mV to 60 mV, which effectively polishes ceramic surfaces without causing scratches and at a lower cost, allowing for high-grade mirror finishing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If diamond abrasives are used for polishing ceramic, then polishing effectiveness is improved, but cost increases and scratches are produced

Engineering Contradiction:
Improvepolishing qualityVSAvoid scratches
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical parameter (pH) of the polishing composition to a specific range (6.0-9.0) to optimize the polishing process. This parameter adjustment allows the use of alternative abrasives like silica while maintaining effective polishing performance without the harmful scratching effects associated with diamond abrasives

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces expensive diamond abrasives with cheaper alternative abrasives such as silica or alumina. These alternative abrasives achieve the desired polishing effect at lower cost and without producing the harmful scratches that characterize diamond abrasive polishing

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

2Productivity

If diamond abrasives are used for polishing ceramic, then polishing effectiveness is improved, but cost increases

Engineering Contradiction:
Improvepolishing effectivenessVSAvoidcost
Core Design Contradiction:
ProductivityVSEase of manufacture

Solution Approach 1:

The patent substitutes costly diamond abrasives with economically viable alternatives such as silica or alumina abrasives. This replacement maintains sufficient polishing effectiveness for achieving mirror surfaces while dramatically reducing the cost of the polishing composition

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

By adjusting the pH parameter to 6.0-9.0 and controlling the zeta potential difference, the patent optimizes the performance of cheaper abrasive materials to match or exceed the effectiveness of diamond abrasives, thereby achieving cost-effective polishing

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If high-grade mirror finishing is achieved, then surface quality is improved, but polishing cost increases

Engineering Contradiction:
Improvesurface qualityVSAvoidpolishing cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent establishes specific parameter ranges (pH 6.0-9.0, zeta potential difference 20-60 mV) that enable high-grade mirror finishing using cost-effective abrasive materials. These parameter optimizations allow achieving superior surface quality without incurring the high costs associated with diamond abrasive polishing

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent employs inexpensive abrasive materials like silica or alumina that can achieve high-grade mirror surfaces when used under optimized conditions (controlled pH and zeta potential), replacing the need for expensive diamond abrasives

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

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 composition achieves high-grade mirror finishing of ceramic components at a lower cost, providing excellent texture and durability, suitable for various products requiring high-quality surface design, while being more durable than finishes obtained through painting or coating.

Implementation Method 1

a polishing composition for polishing ceramic includes abrasives

Methodology Applied
Scientific EffectAbrasion: Abrasion

Implementation Method 2

the surface of a ceramic component is polished by using a polishing composition including diamond abrasives

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

A difference in zeta potential between ceramic and the abrasives may be 20 mV or more to 60 mV or less

Methodology Applied
Scientific EffectZeta potential: Electrostatics

Data Source

PatentUS10626297B2Polishing composition, polishing method, and method for manufacturing ceramic component
Publication Date: 2020.04.21 FUJIMI INCORPORATED

AI summary

Provided is a polishing composition that is produced at low cost and can impart high-grade mirror finishing to ceramic. The polishing composition includes abrasives, has a pH of 6.0 or more to 9.0 or less, and is used for polishing ceramic.