Graphene-Blended Ablation Targets for Uniform Laser Coating
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Solution Overview
Problem
Existing methods for increasing production efficiency in laser ablation coating processes face limitations due to high investment costs and inefficiencies in material detachment, which can be exacerbated by the use of multiple lasers or increased power, leading to non-homogeneous mixing and particle clumping.
Innovation Solution
A method involving the blending of graphene-based additives with powdery raw materials in a liquid suspension, followed by compacting and sintering, to enhance the detachment process during laser ablation, allowing for improved energy absorption and reduced ablation thresholds, thereby facilitating a more uniform and efficient coating process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple lasers or increased laser power are used to increase production efficiency, then the quantity of material detaching per time unit increases, but investment costs grow considerably
Solution Approach 1:
The invention changes the material composition parameters of the target by incorporating graphene-based additives, which modify the optical and thermal properties of the target material. This enables more efficient material detachment at lower laser powers, resolving the contradiction between productivity and investment costs
Solution Approach 2:
The invention uses composite target materials consisting of base material combined with graphene-based additives. This composite structure enhances the laser ablation efficiency, allowing higher productivity without requiring multiple lasers or increased power, thus avoiding higher investment costs
2Ease of manufacture
If dry mixing of powdery source material and additives is performed, then the blending process is simple, but homogeneous mixing becomes difficult due to surface forces and particle friction
Solution Approach 1:
The invention introduces a liquid binder as an intermediary medium to facilitate mixing. The binder reduces particle friction and surface forces, enabling homogeneous distribution of additives in the powdery source material while maintaining ease of manufacture
Solution Approach 2:
The invention uses liquid phase (hydraulic principle) to mix powdery materials. The liquid medium allows particles to move more freely, reducing friction and caking effects, thereby achieving homogeneous mixing that is difficult to obtain through dry mixing
3Productivity
If the quantity of graphene-based additive is increased to enhance detachment, then material transfer efficiency improves, but detrimental quantities of additives remain in the coating
Solution Approach 1:
The invention optimizes the concentration parameter of graphene-based additives in the liquid suspension. By controlling the additive quantity within specific ranges, the process achieves enhanced material detachment while preventing excessive additive residue in the final coating, resolving the contradiction between productivity and coating quality
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 enhances the detachment speed and transfer of material to the substrate, reduces production costs, and allows for tailored coating structures and properties, achieving higher productivity with lower laser power requirements.
Implementation Method 1
Good dispersion thus means uniform blending and distribution of a solid substance into the liquid
Implementation Method 2
the particles can be coerced separate chemically and friction in the liquid is relatively small so that the powder mixture can be blended into a sufficiently homogeneous mixture
Implementation Method 3
A method involving the blending of graphene-based additives with powdery raw materials in a liquid suspension, followed by compacting and sintering, to enhance the detachment process during laser ablation, allowing for improved energy absorption
Implementation Method 4
In laser ablation, short laser pulses are targeted to the target material, making the material to detach from the target material
Implementation Method 5
short laser pulses are targeted to the target material, making the material to detach from the target material in many different ways
Implementation Method 6
followed by compacting and sintering
Implementation Method 7
followed by compacting and sintering
Data Source
Figure 1~5
Figure 6
AI summary
In the present invention there is presented a manufacturing method for producing target material pieces (17) which are used in a laser ablation process and which make possible a more efficient coating process by blending an additive suspension (12, 13) prepared in a special way with a powder (11) used as the raw material for the target material. The suspension (14) consisting of the additive (12), raw materials (11) and liquid (13) is heated and after this sintered so that a solid target material piece (17) is produced. The piece (17) produced in this way can advantageously be used as a target in the laser ablation process.