PhD Researcher in Advanced Laser Metrology

2 maanden geleden

Enschede, Overijssel, Nederland University of Twente Voltijd

Position Overview

We are seeking a dedicated PhD researcher to enhance our dynamic and interdisciplinary research group, focusing on the monitoring and analysis of fundamental physical phenomena during laser-material interactions. The goal is to refine laser-material processing techniques for advanced manufacturing applications, particularly in laser cladding.

Research Context

High-power laser systems are increasingly utilized not only for their commercial availability but also for their capability to deliver concentrated energy to specific areas, enabling the achievement of desired material characteristics. This photonics-driven manufacturing method encompasses various processes, including but not limited to laser cladding, welding, implantation, ablation, and etching. Large-scale metal additive manufacturing, such as laser cladding, is a well-established method that significantly reduces the costs associated with repairing or regenerating damaged industrial components across multiple sectors, including energy, transportation, waste management, construction, and manufacturing. Compared to traditional coating methods like plasma or thermal spray coatings and arc welding, laser cladding offers superior metallurgical bonding, high precision, and minimal distortion, leading to substantial sustainability advantages in resource efficiency and product longevity.

Your Research Challenge

As a PhD candidate, you will investigate Laser-based Direct Energy Deposition (DED), an additive manufacturing technique that involves melting feedstock onto a substrate, resulting in rapid cooling rates and unique material properties at elevated temperatures. The quality of the cladded product is heavily influenced by parameters such as temperature, thermal gradients, and the geometry of the melt pool. While traditional measurement techniques can be challenging at lower temperatures or during post-processing, gaining real-time insights into the melt pool at high temperatures remains a significant challenge. You will develop a more precise, real-time multi-sensor monitoring system to characterize the melt pool both spatially and temporally, as well as spectro-thermally. To address individual sensor uncertainties and enhance sensor modalities, you will create algorithms for sensor fusion utilizing Artificial Intelligence and Machine Learning concepts, which can be applied at various levels of data integration to optimize strategies and provide real-time feedback for consistent, high-quality production of metallic components through laser-based additive manufacturing. This sensing solution has the potential for scalability across different lengths and timeframes.

Candidate Profile

  • A Master's degree, preferably with distinction (or international equivalent) in Optical Engineering, Applied Physics, Photonics, Materials Science, or a closely related field.
  • Experience in real-time imaging and/or spectroscopy is essential.
  • Familiarity with sensor fusion and concepts related to Artificial Intelligence, Machine Learning, or Deep Learning is preferred.
  • Knowledge of fundamental laser-material processing principles and applied techniques is advantageous.
  • Experience with various surface characterization technologies, such as SEM, EDX, AFM, etc., is beneficial.
  • Ability to conduct experimental research in a laboratory setting.
  • Strong analytical skills and an analytical mindset, along with excellent communication abilities, both written and verbal.
  • Proficiency in English is required; candidates from non-English speaking countries must demonstrate proficiency through IELTS or TOEFL scores.
  • A high degree of responsibility and independence is encouraged, alongside collaboration with colleagues and researchers.

Note: This vacancy is exclusively open to female scientists as part of the University of Twente's initiative to enhance the representation of women in its faculty and to foster a diverse and inclusive research environment.

Our Offer

  • A four-year full-time PhD position.
  • A stimulating and modern research environment equipped with world-class facilities, along with excellent mentorship to support your professional and personal development.
  • A starting salary of €2,770 gross per month in the first year, increasing to €3,539 gross per month in the fourth year.
  • An annual holiday allowance of 8% of the gross annual salary, along with an annual year-end bonus of 8.3%.
  • A robust pension scheme.
  • A minimum of 40 leave days for full-time employment.
  • The University of Twente is located on a vibrant campus with numerous facilities for sports and other activities.
  • A tailored training program as part of the Twente Graduate School, where you and your supervisors will design a suitable education and supervision plan.

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