Cabot Corporation

About: Cabot Corporation is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Carbon black & Carbon. The organization has 1279 authors who have published 1399 publications receiving 36736 citations.

Metal binder in compaction of metal powders

Abstract: A method for improving the compaction characteristics of a substantially noncompactable metal powder comprising preparing a superalloy, for example, a nickel base alloy, minus a portion of at least one metal (i.e., 5 weight percent); atomizing the melt and milling it to a fine powder (i.e., about average Fisher size of 9.0 microns); blending an equal portion (i.e., about 5 weight percent) of, for example, carbonyl nickel into the milled powder; sinterbonding the mixture into a "cake" and then further processing as may be required to obtain the desired article. It is believed the "soft" carbonyl nickel acts as a binder for the prealloyed nickel-base alloy powder.

Tantalum and other metals with (110) orientation

Abstract: Tantalum metal, niobium metal, alloys thereof and other bcc metals and alloys thereof having a texture of primary or mixed (110) on the surface and/or throughout the thickness of the metal is described. Also described are the processes for making the tantalum metal and other bcc metal with a texture of primary or mixed (110) and the process of making a sputtering target from the tantalum metal or other bcc metal with a texture of primary or mixed (110).

Urea-formaldehyde pigmentary fillers used in paper

Abstract: This disclosure relates to the use of certain insoluble, infusible, non-porous, particulate urea-formaldehyde polymers having a molar ratio of urea to formaldehyde ranging from about 1:1.3 to about 1:1.8 as pigmentary fillers in the preparation of paper products having improved properties.

Cross-sectional study on respiratory morbidity in workers after exposure to synthetic amorphous silica at five German production plants: exposure assessment and exposure estimates.

Abstract: OBJECTIVES Synthetic amorphous silicas (SASs) are nanostructured polymorphs of silicon dioxide. We compared two different exposure assessments. METHODS This study estimated cumulative exposure to inhalable SAS dust in 484 male workers from five German SAS-producing plants. Two procedures (P1 and P2) were applied. P1 was based on an expert assessment. P2 was a multiple exposure assessment (15 scenarios) anchored by a recent measurement series (1375 personal measurements of inhalable SAS dust concentration) and used expert assessments. RESULTS Cumulative exposure estimates for P1 averaged 56.9 mg/m·yrs (range, 0.1 to 419); for a selected P2 scenario, the mean was 31.8 mg/m·yrs (range, 0.4 to 480), (P < 0.0001). Averages varied between the 15 P2-scenarios from 12.6 to 109.6 mg/m·yrs. Different time trends for SAS concentrations were observed. CONCLUSIONS Both approaches suffer from considerable uncertainties that need to be considered in epidemiological studies.