Pengaruh Persentase Surfaktan Polyethylene Glycol (PEG) dan Persentase Partikel Logam Printed Circuit Board (PCB) Terhadap Zeta Potensial, Konduktivitas Termal, dan Viskositas Thermal Fluids Sebagai Media Pendingin Perlakuan Panas = The Effect of Polyethylene Glycol (PEG) Surfactant Percentage and Metallic Particle Percentage o Printed Circuit Board (PCB) Waste on Zeta Potential, Thermal Conductivity, and Viscosity of Thermal Fluids as Heat Treatment Coolants

Studi pengaruh penggunaan surfaktan CTAB (Cetyl Trimethylammonium Bromide) terhadap konduktivitas termal nanofluida berbasis carbon nanotubes sebagai media quench pada proses perlakuan panas baja S45C = Study of the effect of the use of CTAB (Cetyl Trimethylammonium Bromide) surfactant towards thermal conductivity of carbon nanotubes based nanofluids as a quench media in the heat treatment process of S45C steel

Pengaruh Penambahan Partikel Non-logam Hasil Daur Ulang Printed Circuit Board dan Surfaktan Sodium Dodecylbenzene Sulfonate sebagai Media Pendingin Micro dispersed fluid pada Proses Quenching Baja AISI 4140 = The Influence of Adding Non-metal Particle from Recycled Printed Circuit Boards and Sodium Dodecylbenzene Sulfonate Surfactant as a Nanofluid Cooling Medium on the Quenching Process of AISI 4140 Steel

Pengaruh Penggunaan Surfaktan Cetyl Trimethyl Ammonium Bromide dan Persentase Partikel pada Nanofluida Berbasis Limbah Printed Circuit Board Sebagai Media Quench Terhadap Kekerasan dan Mikrostruktur yang Terbentuk pada Baja AISI 4140 = The Effect of Using Cetyl Trimethyl Ammonium Bromide Surfactant and Particle Percentage in Nanofluids Based on E-waste Printed Circuit Board as Quench Media on Hardness and Microstructures Formed in AISI 4140 Steel

Pengaruh penambahan cetyl trimethylammonium bromide konsentrasi tinggi sebagai surfaktan terhadap konduktivitas termal nanofluida berbasis carbon nanotubes sebagai media quench pada proses perlakuan panas baja S45C = The effect of high concentration cetyl trimethylammonium bromide addition as surfactant on the thermal conductivity of carbon nanotubes based nanofluid as quenchant in S45C steel heat treatment process