Magnesium Oxide Inorganic Structure With Low-Temperature Pressure Bonding
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Solution Overview
Problem
Existing sintering methods for producing inorganic structures, such as magnesia sintered bodies, require high temperatures, leading to high energy consumption and result in structures with many pores and low mechanical strength due to insufficient particle bonding.
Innovation Solution
A method involving the use of magnesium oxide particles bound together by a binding part containing an amorphous compound made of silicon, a metallic element other than silicon, and oxygen, formed through mixing and pressurizing the particles at moderate temperatures and pressures, thereby creating a dense and strong inorganic structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high temperature sintering is used to produce inorganic structures, then particle bonding is improved, but energy consumption increases
Solution Approach 1:
The invention changes the temperature parameter from high temperature sintering (1250-1400°C) to low temperature processing (50-300°C), and introduces pressure (10-600 MPa) as an additional parameter to achieve particle bonding without high energy consumption
Solution Approach 2:
The invention uses a composite binding part containing amorphous silicon dioxide and metallic elements that reacts at low temperature to form strong bonds between magnesium oxide particles, replacing the need for high temperature sintering
2Use of energy by moving object
If low temperature compaction is used to reduce energy consumption, then energy cost decreases, but mechanical strength is insufficient due to poor particle bonding
Solution Approach 1:
The invention introduces a binding part as an intermediary substance containing amorphous silicon dioxide and metallic elements that facilitates particle bonding at low temperatures, enabling strong mechanical bonds without high energy input
Solution Approach 2:
The invention changes the temperature parameter to low range (50-300°C) and introduces pressure (10-600 MPa) to activate the binding part, achieving strong particle bonding through chemical reaction rather than thermal sintering
3Volume of stationary object
If conventional sintering is used to produce dense structures, then particle bonding is achieved, but manufacturing time is long due to high temperature requirements
Solution Approach 1:
The invention dramatically reduces the temperature parameter from 1250-1400°C to 50-300°C and uses pressure (10-600 MPa) as the activating parameter, enabling rapid formation of dense structures in minutes rather than hours
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 method produces an inorganic structure with high density and mechanical strength, reducing energy consumption and manufacturing costs while enhancing thermal conductivity and chemical stability.
Implementation Method 1
a binding part that covers a surface of each of the magnesium oxide particles and binds the magnesium oxide particles together
Implementation Method 2
pressurizing and heating the mixture under conditions of a pressure of 10 to 600 MPa and a temperature of 50 to 300° C.
Implementation Method 3
pressurizing and heating the mixture under conditions of a pressure of 10 to 600 MPa and a temperature of 50 to 300° C.
Data Source
AI summary
Provided is an inorganic structure including a plurality of magnesium oxide particles; and a binding part that covers a surface of each of the magnesium oxide particles and binds the magnesium oxide particles together. The binding part contains an amorphous compound containing silicon, a metallic element other than silicon, and oxygen, and contains substantially no alkali metal, B, V, Te, P, Bi, Pb, and Zn. Also provided is a method for producing an inorganic structure including: a step for obtaining a mixture by mixing a plurality of magnesium oxide particles, a plurality of amorphous silicon dioxide particles, and an aqueous solution containing a metallic element other than silicon; and a step for pressurizing and heating the mixture under conditions of a pressure of 10 to 600 MPa and a temperature of 50 to 300° C.