Violet Gold Alloy Composition for Impact Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Purple gold alloys are fragile and have limited applications due to their brittleness, making them difficult to shape and use in various applications beyond inlays, despite their aesthetically appealing violet color.
Innovation Solution
A gold-based alloy with a violet tint is developed, incorporating additional elements such as silicon, tin, palladium, platinum, silver, and copper, which enhances mechanical properties like impact resistance while maintaining a high gold content and aesthetic appeal, allowing for broader usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If purple gold alloy is used to maintain violet coloration, then aesthetic appeal is improved, but mechanical strength and impact resistance deteriorate
Solution Approach 1:
The patent applies composite materials by combining multiple elements (Au, Al, Si, Sn, Pd, Pt, Ag, Cu) to create an alloy that exhibits both the desired violet coloration and improved mechanical properties. The specific composition ranges for each element are optimized to achieve a balance between aesthetic appearance and structural integrity, resolving the contradiction between color and strength.
Solution Approach 2:
The patent utilizes parameter changes by precisely controlling the compositional parameters of the alloy. By adjusting the content of each element within specific ranges (e.g., Al: 16-21%, Si: 0.1-3%, Sn: 0.1-6%, Pd: 2-6%, Pt: 2-6%, Ag: 2-6%, Cu: 2-6%), the alloy achieves both the characteristic violet color and enhanced mechanical properties, thereby resolving the contradiction between aesthetic appeal and impact resistance.
2Illumination intensity
If purple gold alloy is used to maintain violet coloration, then aesthetic appeal is improved, but ease of manufacture deteriorates due to brittleness
Solution Approach 1:
The patent applies composite materials by combining multiple elements (Au, Al, Si, Sn, Pd, Pt, Ag, Cu) to create an alloy that exhibits both the desired violet coloration and improved mechanical properties. The specific composition ranges for each element are optimized to achieve a balance between aesthetic appearance and structural integrity, resolving the contradiction between color and strength.
Solution Approach 2:
The patent utilizes parameter changes by precisely controlling the compositional parameters of the alloy. By adjusting the content of each element within specific ranges (e.g., Al: 16-21%, Si: 0.1-3%, Sn: 0.1-6%, Pd: 2-6%, Pt: 2-6%, Ag: 2-6%, Cu: 2-6%), the alloy achieves both the characteristic violet color and enhanced mechanical properties, thereby resolving the contradiction between aesthetic appeal and impact resistance.
3Illumination intensity
If purple gold alloy is used to maintain violet coloration, then aesthetic appeal is improved, but reliability deteriorates due to fragility
Solution Approach 1:
The patent applies composite materials by combining multiple elements (Au, Al, Si, Sn, Pd, Pt, Ag, Cu) to create an alloy that exhibits both the desired violet coloration and improved mechanical properties. The specific composition ranges for each element are optimized to achieve a balance between aesthetic appearance and structural integrity, resolving the contradiction between color and strength.
Solution Approach 2:
The patent utilizes parameter changes by precisely controlling the compositional parameters of the alloy. By adjusting the content of each element within specific ranges (e.g., Al: 16-21%, Si: 0.1-3%, Sn: 0.1-6%, Pd: 2-6%, Pt: 2-6%, Ag: 2-6%, Cu: 2-6%), the alloy achieves both the characteristic violet color and enhanced mechanical properties, thereby resolving the contradiction between aesthetic appeal and impact resistance.
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 alloy exhibits improved durability and resistance to impact, corrosion, and can withstand ball drop tests from significant heights, making it suitable for luxury items like jewelry and watches, with reduced porosity and increased ductility through controlled cooling and heat treatment processes.
Implementation Method 1
cooling of the mixture obtained which leads to obtaining the desired alloy
Implementation Method 2
the solidification of the molten mixture is likely to form porosities
Implementation Method 3
a heat treatment step following the cooling of step (ii)... This heat treatment, which induces a relaxation of the material and therefore a reduction in its internal stresses
Data Source
AI summary
The present invention relates to a gold and aluminum alloy having a violet coloration, and which further comprises: at least one additional element selected from Si and Sn; and at least one additional element, distinct from the first, selected from Pd, Pt, Ag, Cu, Si, and Sn. The invention also relates to the preparation of this alloy, as well as its use, particularly for the manufacture of luxury goods.