1、Designation: C 1031 05Standard Specification forNuclear-Grade Aluminum Oxide Powder1This standard is issued under the fixed designation C 1031; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in
2、parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 fabrication into shapes
3、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 Documents2.1 ASTM Standar
4、ds:2C 809 Methods for Chemical, Mass Spectrometric, andSpectrochemical Analysis of Nuclear-Grade AluminumOxide and Aluminum Oxide-Boron Carbide CompositePelletsC 859 Terminology Relating to Nuclear MaterialsE 105 Practice for Probability Sampling of Materials2.2 ANSI Standard:ANSI/ASME NQA-1 Quality
5、 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 Descriptions of Terms Specific to This StandardTermsshall be defined in
6、 accordance with Terminology C 859 exceptfor the following:3.1.1 buyerorganization issuing the purchase order.3.1.2 powder lotthat quantity of aluminum oxide powdermade up of powder from one or more sources, blended togethersuch that samples taken in accordance with the procedures inSection 8 can be
7、 considered as representative of the entirequantity.3.1.3 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),4.1.3 Sample requirements, and4.1.4 Parti
8、cle size distribution.5. Chemical Composition5.1 The powder shall conform to the following chemicalrequirements (see Methods C 809):Element Weight %, maxSilicon 2.0Iron-Chromium-Nickel 0.6Magnesium 1.0Sodium 0.2Calcium 0.3Hafnium 200 g/g Al2O3Fluorine 50 g/g Al2O3Fluorine-Chlorine-Iodine-Bromine 100
9、 g/g Al2O3Gadolinium 100 g/g Al2O3Samarium 100 g/g Al2O3Europium 100 g/g Al2O3Dysprosium 200 g/g Al2O35.2 The total concentration of all impurities, the impuritieslisted in 5.1, and any other identified impurity exceeding 1.0weight % shall be reported. The total of all measured impuri-ties shall not
10、 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 boron) not listed in 5.1.6. Physical R
11、equirements6.1 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 Cycle and is the direct responsibility of
12、Subcommittee C26.03 onNeutron Absorber Materials Specifications.Current edition approved June 1, 2005. Published June 2005. Originallyapproved in 1984. Last previous edition approved in 2004 as C 1031 97 (2004).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Cust
13、omer 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 York, NY 10036.4Available from U.S. Government Printing Off
14、ice Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.2 Specific Surface AreaThe test method and acceptancelimits for specific surface area shal
15、l 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 inpackaging. Cleaning solutions, if used, shall be free of
16、 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 with this specification shall be approved by thebuyer. The
17、degree of sampling, where not specified in thisspecification, varies with the application and for this reasonshould be specified on the purchase order. Practice E 105 isreferenced as a guide.8.2 Each sample taken shall be sufficient for quality controltests, acceptance tests, referee tests, and arch
18、ive 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 each powder lot. Thecertificates shall include the following:
19、9.1.1 Identity of the lot,9.1.2 Individual and total impurities,9.1.3 Particle size distribution and average particle size, and9.1.4 Astatement that each powder lot is in compliance withthe provisions of this specification.10. Rejection and Rehearing10.1 Unless the buyer and seller agree otherwise,
20、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 requirements for identifiedout-of-specification lots. Decision to grant such waiver b
21、elongsto 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 mutuallyselected referee for resolution.11. Packaging and Package Marking11.
22、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 andthe seller.11.2 Each container shall be clearly marked with the fol-lowi
23、ng: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 Assurance12.1 Quality assurance requirements shall be specified inthe purchase order
24、. 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 mentionedin this standard. Users of this standard are expressly advised that
25、 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 committee and must be reviewed every five years andif not revised, either reapprov
26、ed 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 meeting of theresponsible technical committee, which you may attend. If you fee
27、l 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, PO 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).C1031052
