Norton

Brock W H 1992 The Norton History of Chemistry (New York Norton)... 

Collman J P, Hegedus L S, Norton J R and Finke R G 1987 Principles and Applications of Organotransitlon Metal Chemistry (Mill Valley, CA University Soienoe)... 

Norton F H 374 Elements of Ceramics 2nd edn (Reading, MA Addison-Wesley) pp 24-71 Kingery W D 1960 Introduction to Ceramics (New York Wiley) pp 15-31... 

Suryanarayana C and Norton M G 998 X-Ray Diffraction A Practical Approach New York Plenum)... 

Cerium was named for the asteroid Ceres, which was discovered in 1801. The element was discovered two years later in 1803 by Klaproth and by Berzelius and Hisinger. In 1875 Hillebrand and Norton prepared the metal. 

J. P. CoIIman, L. S. Hegedus, J. R. Norton, and R. G. Finke, Principles and Applications of Organotransition Metal Chemistry, University Science Books, Mill Valley, CA, 1987. 

Hantzsch and Weber began their description with the compound which led them indirectly to the discovery of the thiazoles the a-thiocyanoacetone imine ( Rhodanpropimin ) of J. Tcherniac and C. H. Norton. C4H6N2S. obtained by reaction of ammonium thiocyanate with chloroacetone. After Tcherniac and Norton (18), the a thiocyanoacetone... 

In I887, Hantzsch and Weber (1) proposed the structure of p-amino-Q-methylthiazole (66) for the Rhodanpropimin prepared by Tcherniac and Norton (18), and, until then, believed to be thiocyanoacetoneimine (65). 

Ogren, P. J. Norton, J. R. Applying a Simple Linear Least-Squares Algorithm to Data with Uncertainties in Both Variables, /. Chem. Educ. 1992, 69, A130-A131. 

Temam R. (1986) A generalized Norton-Hoff model and the Prandtl-Reuss law of plasticity. Arch. Rat. Mech. Anal. 95, 137-181. 

A higher density sol—gel abrasive, produced by the introduction of seed crystaUites formed by wet-milling with high alumina media or by introduction of submicrometer a-alumina particles, was patented (28) and designated Norton SG. The microstmcture of this abrasive consists of submicrometer a-alumina crystals (Fig. 1) and its bulk density approaches that of fused alumina. Norton SG has proven to be an exceptional performer in coated and bonded abrasive products it was awarded the 1989 ASM Engineering Materials Achievement Award (29). 

Fig. 1. SEM photomicrograph of polished and thermally etched section of Norton SG sol—gel alumina abrasive grain.

A.brasives as a Whole Norton Company, U.S. Washington Mills, U.S. Treibacher, Austria Pechiney, France ESK, Germany and Exolon-ESK, U.S. Superabrasives (Synthetic Diamond and CBN) General Electric, U.S. De Beers, UK and Tomei, Japan ... 

CoatedNbrasives 3M Corporation, U.S. Norton Company, U.S. Hermes, Germany SIA, Switzerland and VSM, Germany ... 

BondedNbrasives Norton Company, U.S. Tyroflt, Austria Noritake, Japan American Industries, U.S. and Naxos Union, Germany. 

Norton CBN Wheels, Form 4800 FPBXM 8—83, Company Bulletin, Norton Company, Worcester, Mass., p. 13. 

F. H. Norton, Forming Plastic Masses, Fine Ceramics Technology and Applications, Robert E. Krieger Publishing, Huntington, NY, 1978, Chapt. 10. 

Properties. Properties of stmctural siHcon nitride ceramics are given in Table 2. These values represent available, weU-tested materials. However, test methodology and the quaHty of the specimens, particularly their surface finish, can affect the measured values. Another important material property is tensile strength. Values obtained on Norton s NT154 material are 750 MPa at RT, 500 MPa at 1200°C, and 350 MPa (50,000 psi) at 1400°C (62). 

M. E. Elorian, D. P. Kronkright, and R. E. Norton, The Conservation of Artifacts Made from Plant Materials, The Getty Conservation Institute, Marina del Ray, Calif., 1990. 

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