http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-528796-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_38beba0459076ff48db83799f7e33c24 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-77 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N23-20 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09G1-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N23-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-259 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K3-1409 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B24D3-346 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-259 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B24D3-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N23-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09G1-02 |
| filingDate | 2001-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e54545662f80607e4687b6678608687 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b5a65532abae2139ffa3d67ae6b38bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e23943d34928d1855c90d4d41ea07a0 |
| publicationDate | 2003-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-528796-B |
| titleOfInvention | Cerium-based abrasive and method of evaluating the same |
| abstract | There is provided a cerium-based abrasive which enables formation of a highly accurate polished surface and has improved grindabi1ity. There is also provided a method of evaluating cerium-based abrasives in a relatively easy manner. In order to achieve the above objects, the cerium-based abrasive of this invention is a cerium-based abrasive containing 40% by weight or more of cerium oxide (on the basis of the total weight of rare earth oxides) which is characterized by further containing 0.5 to 10% by weight of fluorine per 100% by weight of the cerium-based abrasive, in terms of atomic weight, and polishing particles consisting of crystals with a lattice constant measured by an X-ray powder diffraction method ranging from 0.544 to 0.560 nm. And the method of evaluating cerium-based abrasives of this invention is a method including the steps of: analyzing samples of cerium-based abrasive to be subjected to evaluation by the X-ray powder diffraction method; obtaining a diffraction angle θ of at least one of maximum peaks appearing over the prescribed four ranges; and calculating a lattice constant of crystals constituting the polishing particles of the cerium-based abrasive using the above diffraction angle θ. |
| priorityDate | 2000-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.