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1. The carbothermal reduction nitridation reaction was promoted greatly after the milling of alumina for 20 hours.

2. The influence of nitridation temperature and nitrogen flow rate on the growth of buffer layers is emphasized.

3. The results show that nitriding rate and nitridation reaction rate constant are improved with the increase of nitridation temperature and time.

4. These are consistent with the fact that nitridation induces a high oxide charge density.

5. Ion nitridation, because of its ad-vantages, comes mto more and more widely use in our country.

6. Titanium nitride was synthesized by ammonia reduction and nitridation under flowing ammonia atmosphere while the content and tetragonal phase structure of zirconia was unchanged.

7. Currently, the direct nitridation of silicon is the most prevalentpreparation method of silicon nitride.

8. The invention relates to a nitridation sintered aluminum titanate-silicon nitride composite material and preparation method thereof, belonging to the ceramic material field.

9. And the influences of nitridation temperature and nitrogen flow rate are investigated.

10. With the aid of in situ monitoring tool, we have investigated the effects of substrate nitridation.

11. A synthesis method is propsed to prepare metal nitrides by direct nitridation of metals in static nitrogen atmosphere at high temperature.

12. The rate of N atom diffusion is the key factor of controlling whole nitridation rate.

13. The corrosion resistance of Q235 steel in 10% sulfuric acid and rich liquid was studied after steel was treated through the surface nitridation titanium.

14. The preparation of aluminium nitride powder by means of direct nitridation under pressurized nitrogen atmosphere and carbothermal nitridation of alumina is studied.

15. The main reason for the formation of different polar direction is the inhomogeneous nitridation of sapphire substrate which has both N-polarity and Al-polarity.

16. In this thesis,(sentencedict.com/nitridation.html) we try to use post-deposition N2O plasma nitridation to improve the HfO2 film quality.

17. A method for the preparation of silicon nitride powder by a direct nitridation process based on fluidization technology is described.

18. The effect of the size of alumionphosphate precursor, ammonia flow and nitridation temperature on preparation of AlPON were investigated.

19. Preparation methods of trans-metal nitrides are presented and affecting factors on the temperature-programmed nitridation method are discussed.

20. In the present work, surface modification by hot isostatic pressing (HIP) nitridation processing was applied to prepare high performance multiphase composed ceramics.