Document M4BkMRMVoJe7bQpKELVgLZ3nz

CERAMIC ABSTRACTS 1951 Charles S. Pearce, Editor Mary J. Gibb, Assistant Editor Thelma J. Cecil, Editorial Assistant Committee on Publications: Karl Schwartxwalcer. Chairman: R. E. Birch, J. J, Canfield, and G. H. Hahner Technical Advisers: L. G. Farber, Ralph Rose, and Betty T. O'vzn Compiled bj* The American Ceramic Society 2525 North High Street Columbus 2, Ohio 42 Ctmmic Abstracts Febr Orrmixing * metres department for results. F. L. Mat* maws. Ciem. Ud*.. 67 [3] 4tC-4m. 432. 434 M. dis- rrntn the objective of research department tinder product de properties, and application of binding materials and give scripcion of the most important types of stupes made from * ing materials. g^ velopment. procr?* development. application research. and prod- , lades of Hemograms. D**ccla p? Apaxs. Techni act improvement, and its organization under groups. group * Pnas. M.tswtchitscttt Institute of Technology. Combr fender, service funettoas. E.D.M. John WUy & Sou*. Inc.. New York. 174 Production of fused silica. B. A. Rucsas. W. J. Knot*. anO 3A00. Reviewed in Ciem. iad*^ 67 (1} H4 * 193U).--N, H. P. Hoot*a. Tt*s. Eleetrochem. Sue., 92, 11^-26 (194?}.-* _ The present manufacture of sflici products is reviewed, and production methods art outlined. The reactions between hoe Sm and hoe carbon in electric furnaces are analyzed briefly. Under experimental work, the production of silhm ingots weigh- . eng up to 40 lb. (13.1 leg.) in both graphite-resistor and electric- 0 arc furnaces is described. Data presented ore sufficient for a cough estimate of the cost of production. 33 references, 3 figures. F.G.K. _ grams are indexed by key wonU and tabulated undm tlivis such as physics, chemistry, etc. E.D.l Kent's Mechanical Engineer's Handbook: VL n, Design Production. I2tbed- CouxCajuucxasl.editor. johnV fie Sons, lac., New York 16.1950. 1660 pp. Price 36.5U.-- book contains sections on glass, refractories, electrical porccl brick and rile, and abrasives. Other subjects of interest to amists, such as temperature-measuring instruments, are caned. The data given on ceramic products is of *3 gr Respiratory disease--ea (adustrial hazard. A. T. Dote. CLutov Med. 30-[July] 333 (1949); abstracted in Arch. {ml. Eyt. and Occupational Med.. 1 (3) 560 (1930).--The present nature and consists chiefly of physical and chemical proper applications, etc. They are of interest chiefly to mechanic design engineers and not particularly to ceramists. R.J status of knowledge of the disorders caused by industrial dusts Occupational Specialties in Engineering: YoL XL Definiti Is reviewed. Silicosis is included. D.C.P. Prepared for the Office of Naval Research by the Amer Role of fluorosis la Industrial and alimentary hygiene. R. TacRAPT. Semaixt dk&p. (Paris). 25 [Oct. 10} 30S6 (1949); Society of Mechanical Engineers for the Engineers Joint Cou New York IS. 1950. 112 pp.--Definitions for ten activities abstracted in .IrcA. lad. lift. and Occupational Mei^ 1 [3} 3tf? __ for 19 engineering fields of specialization are given. The boo (1950).--Fluorosis due to fluorine compounds used in the manu was prepared to define aad delineate the terms used for field facture of glass, enamel, and cement is.included. D.C.P. ' Safety program la a glasshouse refractories plank R. R. specialization in the Survey of Selected Engineering Personae Patent Tactics and Law. 3rd ed. Root* Skc&ua* He Sitmt. CfosJ Ind., 31 ($i 255-56.272 (1950'.--The safety pro- ^ Ronald Press, New York. 1930. 332 pp. Price $7.00. gram of the Coming Class Works is outlined and discussed in viewed in Gum. but*., 65 [6} 916 (1930).--K. attempts to three main divisions: educational, medical, and technical. quaint business executives, engineers, and inventors with eho Posters, a monthly plant magazine, and a suggestion system with of the fundamentals of patent law and procedure to enable cl monetary awards constitute the educational phase' of the pro- _ to understand and cooperate with their attorneys in pat gram. An 6-room hospital, with personnel of 5. handles the matters. E.D.V. rwKe^t requirements. The technical program Is based on a Review of literature os Dust*. J. J. Fosses. Sa*a J. Oav monthly inspection and report system designed to eliminate POST. ANO GCNtrtsvs G. Mourn. U. S. Bur. Mines Bi Plant problems fall into 6 categories: dust, heat, t No. 473, 333 pp. (1950). Price 65e from Supc of Oocumer heavy lifting, moving machinery, add handling, nod ire. De Govt. Printing Office, Washington 25, D. C--The book cone tailed methods of dealing with each type of hazard are given. a rflsume of the physiological 'effects of breathing dust, type As a result of this program, the average accident frequency for ' injurious dusts, silicosis, methods of preventing dust disea. the last live years has bees 11 disabling accidents per million _ methods of determining dusts in air. economic and legal asp< man-hours worked. The 194S frequency for the clay-products of dust diseases, and costs of compensation for silicosis. industry as a whole was 19.53. W.W.C. L.M.M Some ceramic ideas from Portland cement. V. D. Faicxirr*. /. Can. Ceram. Sotf.. 19,83-72 (1950).--A high degree of develop- j meat in research and control methods has been reached in the PATXNTS Portland cement industry. Developments indicate tines of Assembling slabs aad Idla furniture in ceramic kilns. Rz attack in research in other branches of ceramics. Examples AjourofieCa. Fr.952,662,May2,1949(Sept.3.194?);--A s tnriode the quantitative use of phase diagrams la plant control, _ assemblage of high resistance to flexural stresses between the pc qualitative determination of glass content by heae of solution, is oboined by using a mortise and tenon joint between the sU and phase identification by polish-eteh microscopy. G4LK. and the posts. S.F.C Technical education for tho elayworfcer. M. S. Wxrrxitotrax. Produriag a eeraaie body having longitudinal passages. S Ceramic*. 2 [15] 133-40 (1950).--W. gives a brief outline of the f tax Pao Otncsexoc a Hcrri Vfaesc. Naaooxi Pops institutions where technical -education in ceramics can be ob Brit 631419, Nov. 23, 1949 (June 23. 1943).--A ceramic h- tained. A.B.S. Universities and eanzsie education- A. L. Roszxts. C<- achanger is described. The body is hard porcelain or eerdicr to which mineralizers or plasticizers may be added: TiO- rr ramics. 2 [15} 142*44 (1930).--la Great Britain the universities __ also b added. train technologists by (1) sound preliminary training in pure 8.C.R.A wrience and engineering and (2) systematic instruction in applying that science to specific industries. The University of Leeds Additional abstract* may he the first tn Great Britain to have a course leading to A Sect. Vffi: SUp easting. Sect. X: Measurement of the plus B-Se. with honors in Ceramics. A.B.S. working properties of clays. SCPAXATX FCBttCA-RO.VS Elements of Patent Law. Fans H. RKOOts. Cornell Univer sity Press. Ithaca. N. Y-1949. 190 pp. Price 32.73. Reviewed in Gum. Ind*., 66 [6} 916 (1950). E.D.M. Employment Outlook for Engineers. Prepared by Hasold CocosTztx. Roscet \V. Cain, Coca E. Ta\xor. Chut** F. ScxutMct,. ct At S. Dept. Labor Bur. Labor Statistic* Bull., No. 968, U9 pp. (1930). Price 50e from Supt. of Documents, Govt. Printing Office, Washington 25, 0. C. General Treatise of the Technology of Silicates (Obshchi! kurs tekhnologit silikatov): I and 1L Yu. M. Butt A.sb M. A. \1atvccv. Published by Promstrotlzdat. Moscow, C.S.S.R.. 1948. 352 pp. Price 12.50 rubles.--Part 1 covers the com- position, characteristics, methods of benefieiatton, and txtrac* i j coax*enow On the title page for Ceramic Abstracts published in the December 1950 issue, the Qzmmittee on Publications is listed incorrectly. The prment Committee is as follows: Karl Schwartxwalder, Chairman: R_ E. Birch, J. j. Cart- field. and C. K. Hahner. Reprints of the corrected title page have been made, and members who. bind Ceramic Abstracts may obtain a :.! ...... k,.. .k. i -r jtOl XIVt,Gcneral end Historic :) xj^ arfaee-etive organic addition* b described, and flotation a the properties aad mo of synthetic sapphire art briefly dcscriiwd . "qwcstQjr discussed is retard to difficulties observed in practice. Its melting point of 2050* makes it ideal for refractory supports Starting from experience in the Arid of ore separation by flotation at high temperatures, especially as its tensile properties renin methods. the particular conditions for the flotation of carbonate unchanged. It has also been used for furaaee tniptaioo win- sa4 ySieate minerals arc described is detail, mchidiaf eakite and 9 riows. burner nozzles, atomizer orifices, aad extrusion dies for cement raw materials, gypsum. barite, phosphorite, aad batte work at very high temperature. 3 diagrams.'8 photos. WJL ls Jb the chapter on the flotation of silicates. quartx-feidspar mparatioo is emphasized, aad the nature of the micas, vtrmfcu- izruurs mucATiozs fit*, and day minerals is explained. The last group comprise* CUyworkcr's Handbook. 5th ed. Auus B. the*aluminum silicates. sSlistaaite. aadalusite. aad kjawte. with Chas. Griffin 3t Co.. Ltd^ London. 1949. 392 pp.. 4; fllustra- hkh extensive experience was not available in Europe before liens. Price 36.95 from Maptcton House. Brooklyn, jf. V.-The IPil. and ether minerals such as spoduracne. beryl, etc. Addi- . materials, operations, and machinery for day working a general lieoal suggestions arc given for mineral pigments (ocher*, hems- are treated is a popular manner with many interesting and in- cite. etc.). ^ pisses for automatic welding. A. Pxtra.ix. Skldhkf Rack- Kructive examples. References to current Gtcrature are in cluded. All operations is the use of day, mining, preparation, My. 26 [2-31 26-33 (1950).--A part of the glass factopr in An* --i muting, forming, transportation, firing, packing, and tating. art tontrrrt- Dul was converted for the manufacture of welding fluxes acted. Oee of the most detailed chapters covers the causes and co aid automatic welding processes similar to those used m making cure of about 90 defects found in finished day products. The XJberts* ships in the V. S. The fluxes (alkaline-earth sSieates) chapter ou tests, analysis, and control gives details of instruments contain 10 to 45*2 manganese and must be controlled to riseost* needed for control. The appendix contains references to 333 ocs of 2 to 3 poises at 1300*C. expansions of 63 to 80 X I0"f. hooks published before 292S aad a Est of 30 current journals. and softening points of 600* to 6S0*C. N.J.JC. Measuring relative humidity--experiments with sintered HJCJl. Engineering Method. John- Cxajmis Lovnsicty Fan. Stan- ceramic blocks. A. C. Thomson*. Elec. Eeriew (London). H7 __ ford University Press. Stanford, Calif.. 1950. 186 pp.. 27 figures. $05] 540-41 (1950).--Sintered ceramic blocks 4x3x2 mm. are Price 33.00.--"The Engineering Method." organized in this being investigated by the British Scientific Instrument Research special volume from material presented originally in "The Engi Assoe. as hygrometers. The electrical resistance may well change neering Profession,** formulates for students the system of logic from 1000 J/Q to 1 JfC when the relative humidity changes ^ aad reasoning that b the mark of the practicing engineer. Non from 10 to 95?c. and the response is rapid. Development work technical problems are solved by way of illustration, aad the steps b in progress. WJL of the method are enlarged. F. then discusses practical condi Milestone in research. Axox. Am. Ceram. See. Butt.. 30 tions that control the use of the engineering method and solves [1] 1--4 (1951). 7 photos. _ four problems. Inescapable uncertainties in engineering work patent law revision. Kav Gousscmc. Ckem. Inds^ 67 are studied in the final section, together with ways of coping with ;6! SS4-S5, 923 (1950).--The first general revision aad codifica them. tion of the patent iaws since 1S70. K. R. 9133. b discussed. The General Survey of Work by Dr. Rysehktwitseh Largely in proposed legislation -would consolidate existing legislation and ( Field of Ceramics. Prepared by Carnrazs Ftxsonnzl anp provide for certain changes, such ai provbion for "use" patents MiTirnt Branch, Mxlttajiy Intxujcxnci Drr.. U. S. Wax in a limited sense, write into statutory law the doctrine of con Dtraxrarayy. BJ.O^. Hue. Re?t,, No. 107,110 pp. H. if. tributory infringement, set up an objective test or standard for Stationery Office. Loudon. Price 9r. 7B 97,646, Office of Tech- .determining invention, permit publication of pending applica sical Services. Washington 25. D. C. price 32.75.--The paper tions. allow changes by inventors under certain conditions, pro b subdivided into five parts: (I) Is a general survey, the exten vide for so-oiled patents of addition, and protect intervening sive work in electrochemistry and ceramics done by Rysch- rights where patents are reissued. E.D.M. kewitsch is outlined. Of particular interest are the fundamental Progress in the technology of ceramics. Foux SAXsrons. j studies in the field of oxide ceramics, which are described in his rirw.-Zcg. Tech.. 22,165-6S (1950): abstracted in Chtm. Zentr., book {Ceram. Abstracts, 1949, Oct., p. 233j), aad the successful 121 C (Si 929 (I950i.--The following topics are discussed: cor evolution of a modern type of high-temperature gas- or liquid rect furnace operation: relation between color and admixture m fuel-fired furnace. The production of sintered (shrunk) alumina. brisk masses (formation of the system AIjOj-FetO*): additions _ which was first started by Siemens (Werk Spandaui for heavy- :> improve the plasticity of lean clays and kaolins. e.x,, by the duty spark plugs, was. under the auspices of R^ developed to full mixture CaO-Als(SO!i: preparation of set gypsum by treatment industrial size by Degussa. The high importance of shrunk with salt solutions; acceleration of the melting of glazes by addi alumina was also practically applied to hard tools, and many tions of salts, the mineral petalite being the best: and influence g contributions in this field were advanced by R. His further work of the humidity of the air on sifting (optimum 40 to fiO'"*). ou high-refractive oxides included ZrOu BeO. MgO, etc Meth . M-Ha. ods and numerical data on the physical properties of the shrunk j Report of the third International Confercnee of Experts on oxides were systematically developed. The interesting problem Pneumoconiosis. ANON. Sail. Inst. J/rt, 1950, No. -- of the "fuel clement" with the highest possible thermodynamic 524. pp. 19-27.--None of the current concepts of the ways in efficiency wus one of the first objectives of these studies of high- which dust sets on the lungs b fully acceptable to the committee. resistance oxides. The rich field of hard alloys, especially of car Is gvneral the larger sizes of fibrous dusts such as asbestos appear bides and elementary boron, and the problem of mixed ceramics. to be more harmful, whereas in many other mineral dusts the h .particularly for gas-turbine blades, were extensively studied. smaller sizes are more injurious. There b no eondurive evidence ' (II) The yield strength of SiC with a ceramic binder for use as an on the effectiveness or otherwise of Al powder inhalation in sili abrasive b dealt with. The body, on a day.feldspar-quartz cosis. An appendix outlines suggestions for an international basis, had the Seger formula 0.1 alkali. 0.2 A!;Oi: 1.0 SiO-. The scheme for the classification of radiographs in some of the pneu- -- samples were pressed is steel molds, sintered, and- examined by StVUuiovc*. \VA. ceramic methods. The maximum strength of the mixture* wu Statistical consideration on the of powdery materials. attained at sintering temperatures increasing-with the addition StJWCHt MiyagL J. Cere*. Auoe. Japan, 5* (634 ] 417-20 of SiC. as a consequence of the defective molecular contact of SiC IP.**) i.--Mixturo of calcium carbonate and silica were analyzed. t with the ceramic bond. The coated grains support the silicate from the analytical data the completeness of mixing b dis body with slight temporary deformation as long as their amount used. K.Y. b not too large. (Ill) This part, published in Bet. dent, keram. Stream pollution: Its prevention and control. Mn.vt.s- Xoas. Get., 1942. 1944. and 1943. concerns the bending strengths of Imds.. 67 {Cl 893-96,904 (1950).--Stream pollution, stream -- pure shrunk oxide ceramics. These data and those, in.the follow *-nitatioh. and the dispersion of waste effluents are discussed. ing part (IV) belong to the fundamental facts of modem oxute Thr treatment of waste-* is considered under the headings of ceramics and deserve 3 particularly careful study (for details see Rwhunkal separation, hydraulic separation, chcmicut cougula- R.*s boob). (V) The chemical resistance of sintered oxides is Hun, chemical and physical reactions, disinfection, and biological j discussed, especially of crucibles for laboratory ux made of *wds. - What the law says. Ibid.. pp. Jfl)7-9N. N. discusses the AlsOs. BcO. ZtOu ThOi and spinel. The results are expressed liabilities. E.D.M. in curves of "integral corrosion." at constant temperature* wirtr Synthesis of sapphire: a new British indussy. K. W. Bkown. molten soda and NaOH. Under special conditions, the chemical Inurnment Practice, 5 [2] 86-94 (1950).--The furnace used and resistance of BeO can be considerably improved. W.. The / American / Ceramic / / Society l February 15,1993 I hereby certify that the attached copies of Ceramic Abstracts, Volume, 1951, are true and accurate copies, which are maintained in the normal course of business at the American Ceramic Society, 735 Ceramic Place, Westerville, Ohio 43081. Christine Schnitzer Product Manager Ceramic Information Center 735 Ceramic Place Westerville, Ohio 43081-8720 614- 890 4700 TWX: 7101109409 *