Omega-Phase Titanium Composition for Stronger Biocompatible Implants
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Solution Overview
Problem
There is a need for a titanium material with higher strength to meet the demands of advanced applications, particularly in medical and dental implant fields, while maintaining biocompatibility and mechanical properties.
Innovation Solution
A titanium material comprising 98.8% by mass of titanium, with specific density and impurity content ratios, and incorporating a significant proportion of omega phase, ensuring high tensile strength, ductility, and hardness, along with controlled grain size and impurity composition for enhanced mechanical properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional titanium materials with alpha phase are used, then biocompatibility is maintained, but strength is insufficient for advanced applications
Solution Approach 1:
The patent applies parameter changes by controlling the density and impurity content of titanium materials to transform the crystal structure from alpha phase to omega phase. This phase transformation achieves superior strength properties while maintaining biocompatibility, resolving the contradiction between strength enhancement and reliability preservation in medical applications
Solution Approach 2:
The patent creates a composite material system by forming omega phase titanium through controlled density and impurity content. The omega phase titanium acts as a composite structure with enhanced mechanical properties compared to conventional alpha phase titanium, achieving both high strength and biocompatibility required for advanced medical and dental applications
2Strength
If titanium material density is increased to enhance strength, then tensile strength improves, but ductility may deteriorate
Solution Approach 1:
The patent utilizes parameter changes by precisely controlling density (4.52 g/cm³ or more) and impurity content (c ≤ 1.2%) to achieve omega phase transformation. This controlled parameter adjustment produces a material that simultaneously exhibits high tensile strength and adequate ductility, resolving the trade-off between strength enhancement and compositional stability
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 titanium material achieves high strength, ductility, and biocompatibility, suitable for medical and dental applications, and can accommodate diamond sensors, maintaining strength at elevated temperatures.
Implementation Method 1
The omega titanium is a metastable transition phase formed when the alpha titanium is crystallized from the beta titanium
Data Source
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AI summary
A titanium material is a titanium material including 98.8% by mass or more of titanium, wherein a density ρ g/cm3 of the titanium material and a content ratio c % by mass of a component of the titanium material other than the titanium indicates a relation of the following formula I: ρ>0.007c+4.52 Formula I, and in the formula I, c is 0 or more and 1.2 or less.