| Tribological characterization of the drill pipe tool joints reconditioned by using welding technologies M Caltaru, M Badicioiu, RG Ripeanu, A Dinita, M Minescu, E Laudacescu IOP Conference Series: Materials Science and Engineering 295 (1), 012010, 2018 | 12 | 2018 |
| Establishing the tribological behavior of the HVOF hardfacing applied at petroleum gate valves M Caltaru, M Badicioiu, RG Ripeanu Journal of the Balkan Tribological Association 19 (3), 448-460, 2013 | 8 | 2013 |
| Research regarding the hardfacing of petroleum gate valves by using high velocity oxygen fuel technology V Ulmanu, M Badicioiu, M Caltaru, G Zecheru, G Draghici, M Minescu, ... J. of the Balkan Tribological Association 16, 551-557, 2010 | 8 | 2010 |
| Reconditioning of drill collars by using welding technologies RG Ripeanu, M Badicioiu, M Caltaru Journal of the Balkan Tribological Association 21 (2), 314-328, 2015 | 6 | 2015 |
| Heavy-weight Drill Pipe Hard-facing by Using Welding Technologies V Ulmanu, M Badicioiu, M Caltaru, G Zecheru, G Draghici, M Minescu, ... J Balk Tribol Assoc 16 (4), 510, 2010 | 5 | 2010 |
| Theoretical and Experimental Investigations on 20 Inches Threaded Casing Connections Failure under Field Conditions DG Zisopol, M Minescu, M Badicioiu, MM Caltaru Engineering, Technology & Applied Science Research 11 (4), 7464-7468, 2021 | 4 | 2021 |
| Experimental researches to establish the optimum hardbanding technology and materials of the heavy weight drill pipe MM Caltaru, RG Ripeanu, M Badicioiu, DG Zisopol MATEC Web of Conferences 318, 01017, 2020 | 3 | 2020 |
| Tehnologia materialelor: îndrumar de lucrări practice M Minescu, M Călţaru, M Bădicioiu Editura Universităţii" Petrol-Gaze", 2006 | 3 | 2006 |
| Tribological characterization of the drill collars and casing friction couples RG Ripeanu, M Badicioiu, M Caltaru, A Dinita, E Laudacescu IOP Conference Series: Materials Science and Engineering 295 (1), 012009, 2018 | 2 | 2018 |
| Preliminary Research Regarding the Hardfacing of Petroleum Gate Valves by Using High Velocity Oxygen Fuel Technology V Ulmanu, M Caltaru, M Badicioiu Journal of the Balkan Tribological Association 15 (2), 206-211, 2009 | 2 | 2009 |
| Influence of Chemical Corrosive Environment with H2S on Drill Strings, Experimental Researches MM Caltaru, M Badicioiu, A Dinita, DG Zisopol, RG Ripeanu, M Minescu Revista de Chimie 71 (4), 29-37, 2020 | 1 | 2020 |
| Effect of human factor on octg collapse testing M Minescu, C Teodoriu, M Caltaru, M Badicioiu International Conference on Offshore Mechanics and Arctic Engineering 51296 …, 2018 | 1 | 2018 |
| Investigations on the mud pumps valves repair using hard metal depositing by welding M Badicioiu, M Caltaru, C Teodoriu, M Minescu International Conference on Offshore Mechanics and Arctic Engineering 51296 …, 2018 | 1 | 2018 |
| Fatigue Behaviour of Elastomers Used for Progressive Cavity Pumps Manufacture V Ulmanu, M Badicioiu, MM Caltaru MATERIALE PLASTICE 52 (4), 494-499, 2015 | | 2015 |
| Researches Regarding the Machinability Characteristics of the Tungsten Carbide Layers Made Using the HVOF Process. V Ulmanu, M Călţaru, M Bădicioiu, M Minescu Petroleum-Gas University of Ploiesti Bulletin, Technical Series 62, 2010 | | 2010 |
| Equipment and Industrial Applications of Tungsten Carbide Hardfacing by Using the High Velocity Oxygen Fuel (HVOF) Process. V Ulmanu, M Bădicioiu, M Călţaru Petroleum-Gas University of Ploiesti Bulletin, Technical Series 62 (2), 2010 | | 2010 |
| Petroleum-Gas University, 39 Bucharest Blvd., 100 680 Ploiesti, Romania E-mail: vulmanu (a) upg-ploiesti ro; mbadicioiu aploiesti. ro; mikia, upg-ploiesti, ro; gzecheru (a) upg … V ULMANU, M BADICIOIU, M CALTARU, G ZECHERU, GDM MINESCU, ... Journal of the Balkan Tribological Association Jol l6. No 4, 551-557, 2010 | | 2010 |
| Research Works Referring to the Development of Copper Recovery by Hollow Fiber Supported Liquid Membranes Extraction. M Călţaru, M Bădicioiu Petroleum-Gas University of Ploiesti Bulletin, Technical Series 61 (1), 2009 | | 2009 |
| Copper extraction from diluted solutions using hollow fiber supported liquid membranes M Caltaru, N Petrescu, C Vasiliu Записки Горного института 167 (2), 135-138, 2006 | | 2006 |
| Experimental researches on metals extraction with organic solvents by new methods using liquid membranes M Caltaru, N Petrescu Записки Горного института 167 (2), 139-142, 2006 | | 2006 |
