Effects of rare earth element La on the microstructure of Cumatrix diamond tools were researched under the conditions of variousmaterials components and the process parameters in order to improvematerials properties. ...Effects of rare earth element La on the microstructure of Cumatrix diamond tools were researched under the conditions of variousmaterials components and the process parameters in order to improvematerials properties. SEM, XPS and X-ray were used to investigate thefracture section, microstructure and the element valence inmaterials. The Results shown that the combination of rare earthelement La and transition element Ti is advantageous to the bondingstate Between diamond particles and matrix, so it can improve thematerials properties. Suitable sintering temperature is 790 deg. C.展开更多
About 4,700 domestic and overseas visitors,106 Fortune 500 enterprises, 530 investment projects...central China became eye-catching again in May,during the day of May 18th to 20th,2007,another expo feast-the Investmen...About 4,700 domestic and overseas visitors,106 Fortune 500 enterprises, 530 investment projects...central China became eye-catching again in May,during the day of May 18th to 20th,2007,another expo feast-the Investment & Trade EXPO 2007 Anhui China was held in the city of Hefei,in Anhui province ebulliently authorized by the People’s Government of Anhui Province,which aims at exerting the EXPOCA brand,fully presenting the favorable investment environment of Anhui,strengthening the economic and technical cooperation between Anhui and abroad,broadening the opening up and promoting the great-leap-forward development of Anhui.展开更多
On April 15-30,2007,the 101st session of China Import and Export Fair has successfully concluded with a total export turnover of 36.39 billion USD, hitting a historical high with an increase of 6.8% over the last sess...On April 15-30,2007,the 101st session of China Import and Export Fair has successfully concluded with a total export turnover of 36.39 billion USD, hitting a historical high with an increase of 6.8% over the last session,and over 1,700 exhibitors from 36 countries and regions participated in the International Pavilion.展开更多
Global oil price goes up while the domestic oil-based down-stream industry goes down in its operation. What will impact these players with the global oil-price hiking? The petrochemical global players gather in HK to ...Global oil price goes up while the domestic oil-based down-stream industry goes down in its operation. What will impact these players with the global oil-price hiking? The petrochemical global players gather in HK to address this biting challenge...展开更多
文摘Effects of rare earth element La on the microstructure of Cumatrix diamond tools were researched under the conditions of variousmaterials components and the process parameters in order to improvematerials properties. SEM, XPS and X-ray were used to investigate thefracture section, microstructure and the element valence inmaterials. The Results shown that the combination of rare earthelement La and transition element Ti is advantageous to the bondingstate Between diamond particles and matrix, so it can improve thematerials properties. Suitable sintering temperature is 790 deg. C.
文摘About 4,700 domestic and overseas visitors,106 Fortune 500 enterprises, 530 investment projects...central China became eye-catching again in May,during the day of May 18th to 20th,2007,another expo feast-the Investment & Trade EXPO 2007 Anhui China was held in the city of Hefei,in Anhui province ebulliently authorized by the People’s Government of Anhui Province,which aims at exerting the EXPOCA brand,fully presenting the favorable investment environment of Anhui,strengthening the economic and technical cooperation between Anhui and abroad,broadening the opening up and promoting the great-leap-forward development of Anhui.
文摘On April 15-30,2007,the 101st session of China Import and Export Fair has successfully concluded with a total export turnover of 36.39 billion USD, hitting a historical high with an increase of 6.8% over the last session,and over 1,700 exhibitors from 36 countries and regions participated in the International Pavilion.
文摘Global oil price goes up while the domestic oil-based down-stream industry goes down in its operation. What will impact these players with the global oil-price hiking? The petrochemical global players gather in HK to address this biting challenge...
