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Yeremi Cavin Purba

@yeremicavinpurba

Materials and metallurgical engineering graduate with INALUM smelting experience and research on MXene for supercapacitors.

Indonesia

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At INALUM, I observed Hall-Héroult reduction cell operations and investigated ramming paste cracking during baking. I evaluated material parameters and potential corrective measures to support crack prevention and lining integrity.

At PT PLN Nusantara Power UMRO, I compared GTAW filler metals for SS410 gas turbine compressor blade repair. I assessed weld metal composition and microstructural suitability, then developed a 14-step repair control process scheme.

At Institut Teknologi Sepuluh Nopember (ITS), I supported ceramic materials laboratory work and heat treatment testing. My work included preparing material samples, evaluating properties, and applying relevant ASTM standards.

For my undergraduate thesis, I investigated nitrogen-modified Ti₃C₂Tₓ MXene for supercapacitor applications using material characterization and electrochemical testing. I also earned first place in the Smart Welding in Dimensions 4.0 Business Case Competition.

Experience

Work history, roles, and key accomplishments

Laboratory Assistant, Ceramic Materials

Institut Teknologi Sepuluh Nopember (ITS)

Feb 2026 - Jun 2026 (4 months)

Prepared ceramic and glass batches and supported melting, cooling, and sintering activities. Assisted with material characterization and evaluation of density, porosity, and mechanical properties.

Ceramic Processing Sintering Material Characterization Density Testing Porosity Testing Mechanical Testing

Mechanical Workshop Intern

PT PLN Nusantara Power UMRO

Jan 2026 - Feb 2026 (1 month)

Compared GTAW filler metal options for SS410 gas turbine compressor blade repair and assessed weld metal composition using chromium and nickel equivalents. Developed a 14-step repair control process scheme covering welding procedures and heat treatment considerations.

GTAW Welding And Metallurgy Schaeffler Diagram Dilution Calculations Process Development

Director of Human Resource

Society of Manufacturing Engineers (SME) ITS

Aug 2024 - Aug 2025 (1 year)

Led a team of 10 members in managing human resource programs, team coordination, and performance evaluation. Coordinated recruitment and selection processes involving more than 100 staff candidates.

Team Leadership Recruitment Performance Evaluation HR Management

Laboratory Assistant, Heat Treatment

Institut Teknologi Sepuluh Nopember (ITS)

Mar 2025 - Jun 2025 (3 months)

Guided laboratory testing of steel grades including normalizing, quenching, hardness testing, and Jominy end-quench testing. Applied ASTM standards for hardness testing, hardenability assessment, and metallographic preparation.

Heat Treatment Hardness Testing Jominy End Quench Testing Metallurgy ASTM

Smelter Reduction Operation Intern

PT Indonesia Asahan Aluminium (INALUM)

Dec 2024 - Jan 2025 (1 month)

Observed Hall-Héroult reduction cell operations and investigated ramming paste cracking during baking by evaluating material parameters. Assessed corrective measures involving heating rate control and paste density to improve lining integrity.

Smelting Hall Héroult Process Materials Analysis Ramming Paste Process Improvement

Staff of Research and Professionalism (RnP)

ITS Material Advantage Student Chapter

Feb 2024 - Dec 2024 (10 months)

Supported research and professional development activities related to materials engineering. Assisted in organizing technical programs to enhance members' knowledge and professional competencies.

Research Support Professional Development Event Organization

Staff of Human Resource

Society of Manufacturing Engineers (SME) ITS

Sep 2023 - Jul 2024 (10 months)

Supported recruitment, member development, and human resource administration. Assisted in coordinating organizational programs and monitoring member participation.

Recruitment Membership Development HR Administration Program Coordination

Education

Degrees, certifications, and relevant coursework

Institut Teknologi Sepuluh Nopember

Bachelor of Engineering, Materials and Metallurgical Engineering

2022 -

Grade: 3.22/4.00

Activities and societies: First Place, Smart Welding in Dimensions 4.0 Business Case Competition, ITERA (2025).

Pursuing a Bachelor of Materials and Metallurgical Engineering with a GPA of 3.22/4.00. Thesis investigates the effect of urea-to-MXene mass ratio on nitrogen-modified Ti3C2Tx MXene for supercapacitor applications.