Pressure Medium Oil Using Group-14 Compounds for Ultrahigh Pressure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pressure medium oils solidify at relatively low pressures, limiting their effectiveness in applying uniform high pressure to substances, and they may dissolve conductive pastes or have high pour points, making them unsuitable for certain applications.
Innovation Solution
A pressure medium oil containing Group-14 element-containing organic compounds, such as organic germanium, tin, or lead compounds, with specific kinematic viscosity and pour point characteristics, ensuring the oil remains liquid under high pressures and does not dissolve conductive pastes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If conventional pressure medium oils are used, then they can apply pressure to substances, but they solidify at relatively low pressures (below 3.7 GPa), limiting their effectiveness in high-pressure applications
Solution Approach 1:
The patent changes the chemical composition parameters of the pressure medium oil by incorporating Group-14 element-containing organic compounds (germanium, tin, or lead compounds) with specific molecular structures. This compositional parameter change raises the solidification pressure from below 3.7 GPa to above 3.7 GPa, resolving the contradiction between maintaining liquid state and withstanding high pressure.
2Stability of the object's composition
If conventional pressure medium oils are used, then they can maintain liquid state, but they may dissolve conductive pastes, making them unsuitable for electrical conductivity measurements
Solution Approach 1:
The patent selects pressure medium oil compounds with specific molecular characteristics (Group-14 element-containing organic compounds with appropriate viscosity and molecular weight) that inherently resist dissolving conductive pastes. This material selection approach ensures chemical stability and prevents contamination, maintaining measurement reliability without requiring additional protective measures.
3Temperature
If conventional pressure medium oils are used, then they can be liquid at room temperature, but they have high pour points, causing solidification at low temperatures and potentially breaking brittle samples
Solution Approach 1:
The patent modifies the thermal parameters of the pressure medium oil by selecting Group-14 element-containing organic compounds with specific molecular structures that have low pour points. This parameter change ensures the oil remains liquid at low temperatures, preventing solidification-induced damage to brittle samples while maintaining pressure transmission capability.
4Stress or pressure
If conventional pressure medium oils are used, then they can apply pressure uniformly, but they have high compressibility, causing wall contact with samples during compression
Solution Approach 1:
The patent changes the physical parameters of the pressure medium oil by selecting compounds with optimized compressibility characteristics. The Group-14 element-containing organic compounds are chosen to have appropriate molecular sizes and intermolecular forces that reduce compressibility, preventing wall-sample contact while maintaining uniform pressure distribution through the medium.
Data Source
AI summary
Provided are a pressure medium oil, containing a Group-14 element-containing organic compound selected from an organic germanium compound, an organic tin compound, and an organic lead compound, and a method for using a pressure medium oil, which includes applying a pressure to a substance via the pressure medium oil. The pressure medium oil does not solidify even under an ultrahigh pressure of more than 3.7 GPa at room temperature (25°C) and has a low pour point, and hardly dissolves a conductive paste.