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Vimal K Pujari

from Northborough, MA
Age ~76
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Also known as:
Zinan K Pujari, Vimal K Mandira, Vimal K Pugari, Pujari Vk
Phone and address:
5 Spruce Hill Dr, Northborough, MA 01532
(508) 393-1342
Related to:
Jeanne H Davin, 68
Connected to:
Akshay S Pujari, 33Manoj K Pujari, 63Rahul Pujari, 43Michelle R Pujats, 82Conrad M Pujdak, 70Kenneth J Pujdak, 79Nathan A Pujdak, 48Nicholas J Pujdak, 64Antonio C Pujia, 48Frank J Pujia, 74

Vimal Pujari Phones & Addresses

  • 5 Spruce Hill Dr, Northborough, MA 01532 (508) 393-1342
  • Northboro, MA
  • Columbia, MD
  • 5 Spruce Hill Dr, Northborough, MA 01532

Work

Position: Financial Professional

Resumes

Resumes

Vimal Pujari Photo 1

Senior Material Scientist

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Location:
5 Spruce Hill Dr, Northborough, MA 01532
Industry:
Staffing And Recruiting
Work:
Saint-Gobain Glass
Sr engineer
Education:
University of California, Berkeley 1972 - 1977
Doctorates, Doctor of Philosophy, Philosophy, Mechanical Engineering Indian Institute of Technology (Banaras Hindu University), Varanasi 1969 - 1971
Masters, Master of Engineering, Engineering, Design
Skills:
Materials
Materials Science
Design of Experiments
Glass
Manufacturing
Process Engineering
R&D
Engineering
Six Sigma
Spc
Characterization
5S
Kaizen
Process Simulation
Ceramic
Brazing Ceramic To Metals
Powder Metallurgy Including Pressing and Sintering
Coatings
Metallurgy
Languages:
English
Hindi
Bengali
Vimal Pujari Photo 2

Vimal Pujari

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Publications

Us Patents

High Solids Hbn Slurry, Hbn Paste, Spherical Hbn Powder, And Methods Of Making And Using Them

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US Patent:
6645612, Nov 11, 2003
Filed:
Aug 7, 2001
Appl. No.:
09/923994
Inventors:
Vimal K. Pujari - Northboro MA
William T. Collins - Auburn MA
Jeffrey J. Kutsch - Oxford MA
Assignee:
Saint-Gobain Ceramics Plastics, Inc. - Worcester MA
International Classification:
B01F 1754
US Classification:
428325, 257717, 264 13, 423290, 428323, 428402, 501 964, 516 33, 516 78, 524404
Abstract:
The present invention relates to a method for making a hexagonal boron nitride slurry and the resulting slurry. The method involves mixing from about 0. 5 wt. % to about 5 wt. % surfactant with about 30 wt. % to about 50 wt. % hexagonal boron nitride powder in a medium under conditions effective to produce a hexagonal boron nitride slurry. The present invention also relates to a method for making a spherical boron nitride powder and a method for making a hexagonal boron nitride paste using a hexagonal boron nitride slurry. Another aspect of the present invention relates to a hexagonal boron nitride paste including from about 60 wt. % to about 80 wt. % solid hexagonal boron nitride. Yet another aspect of the present invention relates to a spherical boron nitride powder, a polymer blend including a polymer and the spherical hexagonal boron nitride powder, and a system including such a polymer blend.

Silicon Carbide Ceramic Composition And Method Of Making

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US Patent:
6680267, Jan 20, 2004
Filed:
Aug 20, 2001
Appl. No.:
09/933463
Inventors:
Vimal K. Pujari - Northboro MA
William T. Collins - Auburn MA
Assignee:
Saint-Gobain Ceramics Plastics, Inc. - Worcester MA
International Classification:
C04B 35565
US Classification:
501 88, 501 89, 501 90, 501 91
Abstract:
The present application is directed to ceramic compositions and, more specifically, to a silicon carbide composition and method of making it through liquid phase sintering. In one embodiment, the present invention is directed to an unsintered ceramic body including a rare earth metal oxide, one of a glass phase metal oxide and a glass phase metal nitride, a boron containing compound, a free carbon containing compound and silicon carbide. In another embodiment, the present invention is directed to a method of making a sintered ceramic body. The method includes combining a rare earth metal oxide, one of a glass phase metal oxide and a glass phase metal nitride, a boron containing compound, a free carbon containing compound, and silicon carbide to form a green ceramic. The method further includes shaping the green ceramic into a ceramic body and sintering the ceramic body.

Recession Resistant Coated Ceramic Part

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US Patent:
6682820, Jan 27, 2004
Filed:
Oct 31, 2002
Appl. No.:
10/284693
Inventors:
Vimal K. Pujari - Northboro MA
Assignee:
Saint-Gobain Ceramics Plastics, Inc. - Worcester MA
International Classification:
B32B 1504
US Classification:
428426, 438432, 438428, 438446, 438689, 438698, 438699, 438701, 428702, 428704
Abstract:
A recession resistant coated ceramic part. The ceramic part has a ceramic substrate and a recession resistant coating disposed on the substrate. The coating includes a plurality of layers diffusion bonded to each other and to the substrate respectively. The top most layer is characterized by a greater resistance to recession due to oxidation than that of the substrate.

Silicon Carbide Ceramic Composition And Method Of Making

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US Patent:
6762140, Jul 13, 2004
Filed:
Apr 29, 2002
Appl. No.:
10/134989
Inventors:
Vimal K. Pujari - Northboro MA
William T. Collins - Auburn MA
Matteo Scalabrino - Camporosso, IT
Assignee:
Saint-Gobain Ceramics Plastics, Inc. - Worcester MA
International Classification:
C04B 35569
US Classification:
501 88, 501 89, 501 90, 501 91, 501 92, 264682
Abstract:
The present application is directed to ceramic compositions and, more specifically, to a silicon carbide composition and method of making it through liquid phase sintering. In one embodiment, the present invention is directed to an unsintered ceramic body including at least one liquid phase sintering aid. The unsintered ceramic body further includes a boron containing compound, a free carbon containing compound, and silicon carbide. In another embodiment, the present invention is directed to a method of making a sintered ceramic body. The method includes combining at least one liquid phase sintering aid, a boron containing compound, a free carbon containing compound, and silicon carbide to form a green ceramic, shaping the green ceramic into a ceramic body, and sintering the ceramic body.

Ceramic Component Containing Inclusions

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US Patent:
6953760, Oct 11, 2005
Filed:
Jun 4, 2003
Appl. No.:
10/454084
Inventors:
Vimal K. Pujari - Northboro MA, US
Jeffrey J. Kutsch - Oxford MA, US
Assignee:
Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA
International Classification:
C04B035/565
C01M103/02
US Classification:
501 90, 501 99, 508107, 508109
Abstract:
A ceramic component is disclosed, including a sintered ceramic body from a composition comprising a first ceramic material, and a plurality of inclusions in the ceramic body, each inclusion comprising graphite and a second ceramic material.

Method Of Making Ceramic Component Containing Inclusions

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US Patent:
7534388, May 19, 2009
Filed:
Mar 11, 2005
Appl. No.:
11/078599
Inventors:
Vimal K. Pujari - Northboro MA, US
Jeffrey J. Kutsch - Oxford MA, US
Assignee:
Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA
International Classification:
C04B 33/32
US Classification:
264661, 264669, 264682
Abstract:
A ceramic component is disclosed, including a sintered ceramic body from a composition comprising a first ceramic material, and a plurality of inclusions in the ceramic body, each inclusion comprising graphite and a second material.

Method Of Preparing Pressureless Sintered, Highly Dense Boron Carbide Materials

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US Patent:
7919040, Apr 5, 2011
Filed:
Aug 7, 2008
Appl. No.:
12/221916
Inventors:
Vimal K. Pujari - Northborough MA, US
James T. Hennessey - Rutland MA, US
William T. Collins - Auburn MA, US
Assignee:
Saint-Gobain Ceramics & Plastics, Inc. - Worcester MA
International Classification:
B28B 3/00
US Classification:
264669
Abstract:
In a method of preparing a boron carbide material, boron carbide powder is washed with essentially pure water at an elevated temperature to generate washed boron carbide powder. The washed boron carbide powder is combined with a sintering aid. The mixture of the boron carbide powder and the sintering aid is pressed to form a shaped material, and the shaped material is sintered. A sintered boron carbide material comprises a boron carbide component that includes boron carbide, elemental carbon, and not more than about 0. 6 wt % of oxygen on the basis of the total weight of the boron carbide component. The sintered boron carbide material has a density of at least about 99% of the theoretical density. Another sintered boron carbide material comprises a boron carbide component that includes boron carbide, silicon carbide, elemental carbon, and not more than about 0. 3 wt % oxygen on the basis of the total weight of the boron carbide component, and has a density of at least about 97% of the theoretical density.

Silicon Nitride Body And Method Of Manufacture

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US Patent:
8071495, Dec 6, 2011
Filed:
Dec 21, 2007
Appl. No.:
11/962352
Inventors:
Vimal K. Pujari - Northboro MA, US
William T. Collins - Auburn MA, US
Assignee:
Ceramatec, Inc. - Salt Lake City UT
International Classification:
C04B 35/587
US Classification:
501 972
Abstract:
A densified silicon nitride body can be formed using a lanthana-based sintering aid. The composition may exhibit properties that provide a material useful in a variety of applications that can benefit from improved wear characteristics. The composition may be densified by sintering and hot isostatic pressing.
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Vimal K Pujari from Northborough, MA, age ~76 Get Report