1. Prof Johny Wahyuadi Laboratory, Department of Metallurgical and Materials Engineering, Universitas Indonesia , Depok 16424, Indonesia ; , Jakarta Selatan 12520, Indonesia
2. PT Pertamina Hulu Energi , Depok 16424, Indonesia ; , Jakarta Selatan 12520, Indonesia
3. Prof Johny Wahyuadi Laboratory, Department of Metallurgical and Materials Engineering, Universitas Indonesia , Depok 16424, Indonesia