公开(公告)号：US20200206819A1

公开(公告)日：2020-07-02

申请号：US16727757

申请日：2019-12-26

Applicant: Tata Consultancy Services Limited

Inventor： Santosh Vasant DAWARE ,  Beena RAI

IPC: B22F9/04 ,  G01N15/02 ,  B22F1/00

Abstract: A method for synthesis of nanoparticles are described. The method includes dispersing metal oxide powder in a mixture of a base liquid and a surfactant to form a primary mixture, grinding the primary mixture using a grinding media by periodically adding a surfactant solution to form a slurry, extracting a predetermined amount of sample from the slurry at periodic time intervals to obtain a testing solution to assess particle size of in the slurry using a particle size analyzer; and systematically adding the surfactant solution and the grinding media to the slurry based on the assessed particle size in the testing solution until a mean particle size of the nanoparticles is achieved.

公开(公告)号：US20200291264A1

公开(公告)日：2020-09-17

申请号：US16800409

申请日：2020-02-25

Applicant: Tata Consultancy Services Limited

Inventor： Santosh Vasant DAWARE ,  Beena RAI

IPC: C09D183/06 ,  C09D5/00 ,  C09D7/61 ,  C09D7/40

Abstract: A composition(s) and method(s) for preparation of hydrophobic coating composition are described. The hydrophobic coating composition includes a formulation of alumina-silica based nano composite and a resin onto which the formulation is dispersed to form the hydrophobic coating composition. The formulation includes silica nano-particles derived from TetraEthoxySilane and HexaDecylTriMethoxySilane, ammonia as catalyst and aluminum iso propoxide as a precursor for synthesis of alumina and a resin onto which the formulation is dispersed to form the hydrophobic coating composition.

公开(公告)号：US20220108053A1

公开(公告)日：2022-04-07

申请号：US17175463

申请日：2021-02-12

Applicant: Tata Consultancy Services Limited

Inventor： Santosh Vasant DAWARE ,  Sooriyan SENGUTTUVAN ,  Soban Babu BEEMARAJ ,  Rizwan Khan PATHAN ,  Yagnik Pravinchandra KALARIYA ,  Amit Gangadhar SALVI ,  Beena RAI

IPC: G06F30/23 ,  G06F30/27 ,  G06T17/20 ,  G06N20/00

Abstract: Conventionally, manufacturing of molded parts using composite materials has led to poor dimensional accuracy and tensile strength due to improper curing thus resulting in rejection or early/premature failure of composite part. Embodiments of the present disclosure provide simulation-based systems and methods for manufacturing/generating molded parts using reinforced composite materials. The optimized cure cycle is computed for a given component without carrying out numerous experiments. The present disclosure implements multiscale method and surrogate modeling in virtual testing for more accurate and faster manufacturing of molded parts. Process parameters for specified qualities (e.g., minimum residual stresses, minimum deformation, etc.) required for a part are determined along with least process manufacturing time. The resulting optimized time dependent cure cycle for each thermal zone of the heated mold is transferred to a master controller (e.g., system) which controls the entire curing processes with the use of feedback control.

公开(公告)号：US20200308670A1

公开(公告)日：2020-10-01

申请号：US16799884

申请日：2020-02-25

Applicant: Tata Consultancy Services Limited

Inventor： Santosh Vasant DAWARE ,  Shally GUPTA ,  Beena RAI

IPC: C22B59/00 ,  C22B1/02 ,  C22B1/00 ,  C22B7/00

Abstract: Recovery of rare earth elements (REEs) from electronic wastes is a promising approach. The existing methods for separation of REE from the secondary sources are not economically viable and scalable. A method and system for separation of rare earth metals from a plurality of secondary sources has been provided. The magnet is obtained from the secondary sources which is then crushed to a coarser size. The powder is then demagnetized by heating and roasted at high temperature to obtain the metal oxides. The metals oxides are then dissolved by acid leaching to obtain leach liquor. Iron is removed from leach liquor by precipitation and separated by filtration. The individual REE is then separated by liquid-liquid extraction. The conditions in liquid-liquid extraction are adjusted such that only desired REE is separated. The extracted REE is then stripped out by acid. The individual rare earth element is then precipitated and dried.