1、Designation: C1031 11 (Reapproved 2016)Standard Specification forNuclear-Grade Aluminum Oxide Powder1This standard is issued under the fixed designation C1031; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification provides the chemical and physicalrequirements for nuclear-grade aluminum oxide powder in-tended for fabricati
3、on into shapes for nuclear applications. Twospecific uses for which this powder is intended are Al2O3pellets and Al2O3B4C composite pellets for use as thermalinsulator or burnable neutron absorbers, respectively.1.2 The material described herein shall be particulate innature.2. Referenced Documents2
4、.1 ASTM Standards:2C809 Test Methods for Chemical, Mass Spectrometric, andSpectrochemical Analysis of Nuclear-Grade AluminumOxide and AluminumOxide-Boron Carbide CompositePelletsC859 Terminology Relating to Nuclear MaterialsE105 Practice for Probability Sampling of Materials2.2 ANSI Standard:ANSI/AS
5、ME NQA-1 Quality Assurance Requirements forNuclear Facility Applications32.3 U.S. Government Document:Code of Federal Regulations, Title 10, Part 50Energy(10CFR 50), Domestic Licensing of Production and Uti-lization Facilities43. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Te
6、rms shall be defined in accordance with Terminol-ogy C859 except for the following:3.1.2 buyerorganization issuing the purchase order.3.1.3 powder lotthat quantity of aluminum oxide powdermade up of powder from one or more sources, blended togetherand homogenized such that samples taken in accordanc
7、e withthe procedures in Section 8 can be considered as representativeof the entire quantity.3.1.4 selleraluminum oxide manufacturer.4. Ordering Information4.1 The buyer shall specify the following information on theorder:4.1.1 Quantity (weight of delivered product),4.1.2 Lot size (allowable range),4
8、.1.3 Sample requirements, and4.1.4 Additional requirements.5. Chemical Composition5.1 The powder shall conform to the following chemicalrequirements (see Methods C809):Element Weight %, maxSilicon 2.0Iron-Chromium-Nickel 0.6Magnesium 1.0Sodium 0.2Calcium 0.3Hafnium 200 g/g Al2O3Fluorine 50 g/g Al2O3
9、Fluorine-Chlorine-Iodine-Bromine 100 g/g Al2O3Gadolinium 100 g/g Al2O3Samarium 100 g/g Al2O3Europium 100 g/g Al2O3Dysprosium 200 g/g Al2O35.2 The impurities listed in 5.1, and any other identifiedimpurity exceeding 1.0 weight % and the total concentration ofall impurities, shall be reported. The tot
10、al of all measuredimpurities shall not exceed 4.0 weight %.5.3 Loss-on-IgnitionThe test method and acceptance lim-its for loss-on-ignition shall be agreed upon between the buyerand the seller.NOTE 1The buyer may specify limits for any other elements (forexample, neutron absorbing materials, such as
11、boron) not listed in 5.1.6. Physical Requirements6.1 The particle size distribution shall have a mean value of6 m or less. The particle size distribution will be determinedutilizing a method approved by the buyer.1This specification is under the jurisdiction of ASTM Committee C26 onNuclear Fuel Cycl
12、e and is the direct responsibility of Subcommittee C26.03 onNeutron Absorber Materials Specifications.Current edition approved April 1, 2016. Published April 2016. Originallyapproved in 1984. Last previous edition approved in 2011 as C1031 11. DOI:10.1520/C1031-11R16.2For referenced ASTM standards,
13、visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandardsvolume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New Yo
14、rk, NY 10036.4Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, D.C., 20401.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16.2 Specific Surface AreaThe test
15、 method and acceptancelimits for specific surface area shall be agreed upon betweenthe buyer and the seller.7. Cleanliness7.1 The powder lot shall be handled in a manner to avoidcontamination by foreign matter such as dust, cleaning agentsand organics, and materials, such as plastics and paper, used
16、 inpackaging. Cleaning solutions, if used, shall be free of halidesand nonvolatile additives and shall be removed from thepowder prior to sampling and packaging.8. Sampling8.1 Sampling plans to meet acceptance criteria and inspec-tion and measurement procedures that describe the method ofcompliance
17、with this specification shall be approved by thebuyer. The degree of sampling, where not specified in thisspecification, varies with the application and for this reasonshould be specified on the purchase order. Practice E105 isreferenced as a guide.8.2 Each sample taken shall be sufficient for quali
18、ty controltests, acceptance tests, referee tests, and archive samples asnecessary or desired by the buyer.9. Inspection and Certification9.1 The seller shall inspect the material covered by thisspecification and shall furnish the buyer with certificates of testand inspection results performed on eac
19、h powder lot. Thecertificates shall include the following:9.1.1 Identity of the lot,9.1.2 Individual and total impurities,9.1.3 Particle size distribution and mean value,9.1.4 Specific surface area, and9.1.5 Astatement that each powder lot is in compliance withthe provisions of this specification.10
20、. Rejection and Rehearing10.1 Unless the buyer and seller agree otherwise, rejectionand acceptance shall be on a powder lot basis.10.2 Powder lots that fail to conform to the requirements ofthis specification may be rejected by the buyer. The seller maypetition the buyer to waive selected requiremen
21、ts for identifiedout-of-specification lots. Decision to grant such waiver belongsto the buyer. The buyer shall approve, prior to use, any remedyproposed to bring rejected lots into specification.10.3 In the event of disagreement over the results ofchemical analyses, samples shall be submitted to a m
22、utuallyselected referee for resolution.11. Packaging and Package Marking11.1 Aluminum oxide powder shall be packaged in sealedcontainers to prevent loss or damage or contamination, fromairborne or container materials. The exact size and type ofpackaging shall be as mutually agreed upon by the buyer
23、andthe seller.11.2 Each container shall be clearly marked with the fol-lowing:11.2.1 Aluminum oxide powder,11.2.2 Purchase order number,11.2.3 Purchase order Specification,11.2.4 Gross, net, and tare weight,11.2.5 Lot number,11.2.6 Name of seller, and11.2.7 Container ( ) of ( ).12. Quality Assurance
24、12.1 Quality assurance requirements shall be specified inthe purchase order. Code of Federal Regulations, Title 10, Part50 (Appendix B) and ANSI/ASME NQA-1 are referenced asguides.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item m
25、entionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committ
26、ee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meet
27、ing of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, P
28、O Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 11 (2016)2
