Some characteristics of HfN coatings on cemented carbide substrates

Perry, A.J.; Grössl, M.; Hammer, Barbara

doi:10.1016/0040-6090(85)90054-9

Cited by 14 publications

(1 citation statement)

References 14 publications

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“…16 This has also been found for thin coatings of HfN. 13 However, the recording of values as high as 10-14 kg for coatings 8-14 J.1min thickness for HfN on cemented carbides of various qualities 13 has led to closer study of this phenomenon. It was found that three distinct changes in coating response could be distinguished as the stylus load was raised.…”

Section: Metallurgicalmentioning

confidence: 87%

Scratch Adhesion Testing: A Critique

Perry

1986

Surface Engineering

104

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Section: Metallurgicalmentioning

confidence: 87%

Scratch Adhesion Testing: A Critique

Perry

1986

Surface Engineering

104

View full text Add to dashboard Cite

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Hafnium and Hafnium Compounds

Nielsen¹

2000

Kirk-Othmer Encyclopedia of Chemical Technology

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Hafnium, Hf, is in Group 4 (IVB) of the Periodic Table, as are the lighter elements zirconium and titanium. Hafnium is a heavy gray‐white metallic element never found free in nature. It is always found associated with the more plentiful zirconium. The two elements are almost identical in chemical behavior. Hafnium is obtained as a by‐product of the production of hafnium‐free nuclear‐grade zirconium. Hafnium's primary use is as a minor strengthening agent in high temperature nickel‐base superalloys. Additionally, hafnium is used as a neutron‐absorber material, primarily in the form of control rods in nuclear reactors. Hafnium is a hard, heavy, somewhat ductile metal having an appearance slightly darker than that of stainless steel. Hafnium's aqueous chemistry is characterized by a high degree of hydrolysis, the formation of polymeric species, a very slow approach to true equilibrium, and the multitude of complex ions that can be formed. Hafnium is a highly reactive metal. Most hafnium compounds have been of slight commercial interest aside from intermediates in the production of hafnium metal. However, hafnium oxide, hafnium carbide, and hafnium nitride are quite refractory and have received considerable study as the most refractory compounds of the Group 4 (IVB) elements.

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Hafnium and Hafnium Compounds

Nielsen¹

2004

Kirk-Othmer Encyclopedia of Chemical Technology

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Hafnium, Hf, is in Group 4 (IVB) of the Periodic Table, as are the lighter elements zirconium and titanium. Hafnium is a heavy gray‐white metallic element never found free in nature. It is always found associated with the more plentiful zirconium. The two elements are almost identical in chemical behavior. Hafnium is obtained as a by‐product of the production of hafnium‐free nuclear‐grade zirconium. Hafnium is used in nuclear control rods, nickel‐based superalloys, nozzles for plasma arc metal cutting, and high temperature ceramics. Hafnium is a hard, heavy, somewhat ductile metal having an appearance slightly darker than that of stainless steel. Hafnium's aqueous chemistry is characterized by a high degree of hydrolysis, the formation of polymeric species, a very slow approach to true equilibrium, and the multitude of complex ions that can be formed. Hafnium is a highly reactive metal. Most hafnium compounds have been of slight commercial interest aside from intermediates in the production of hafnium metal. However, hafnium oxide, hafnium carbide, and hafnium nitride are quite refractory and have received considerable study as the most refractory compounds of the Group 4 (IVB) elements.

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Some characteristics of HfN coatings on cemented carbide substrates

Cited by 14 publications

References 14 publications

Scratch Adhesion Testing: A Critique

Scratch Adhesion Testing: A Critique

Hafnium and Hafnium Compounds

Hafnium and Hafnium Compounds

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