High temperature protective coatings for refractory metals Progress report

Microbend tester and heat-treating apparatus development for study of high temperature protective coatings for refractory metal

High temperature protective coatings for refractory metals Final technical report

High temperature protective coatings of iridium on tantalum, niobium, molybdenum, and tungste

High Temperature Protective Coatings for Refractory Metals Progress Report No. 1, 21 Apr. - 21 Jul. 1966

Applicability of iridium as protective coating for refractory metals - rates of interdiffusion of iridium with tungsten, molybdenum, and niobiu

High temperature protective coatings for refractory metals Yearly summary report, 21 Oct. 1964 - 21 Oct. 1965

Performance characteristics of iridium used as high temperature oxidation protective coating for refractory metal

High temperature protective coatings for refractory metals Progress report no. 3, 1 May - 31 Jul. 1965

High temperature protective coating for refractory metals - electrodeposition and diffusion bonding of iridium on tantalum to prevent oxidatio

High temperature protective coatings for refractory metals progress report no. 2, 23 jan. - apr. 1965

Methods of applying iridium to refractory metal substrate, chemical and mechanical behavior of coating substrate system, and qualitative oxidation test

High temperature protective coatings for refractory metals Yearly summary report

Iridium coatings for high temperature oxidation protection on tantalum, niobium, molybdenum, and tungste

High temperature protective coatings for refractory metals progress report no. 1, oct. 23, 1964 - jan. 23, 1965

Iridium as high temperature protective coating for unalloyed niobium and tantalu

Analysis of Gas-Phase Clusters Made from Laser-Vaporized Icosahedral Al−Pd−Mn

An icosahedral Al−Pd−Mn quasicrystal sample is laser vaporized to form metal clusters by gas aggregation. The clusters are subsequently laser ionized and mass analyzed in a time-of-flight mass spectrometer. The mass spectra show cluster compositions which are qualitatively similar to that of the sample. This is consistent with a kinetically controlled cluster growth process. Cluster thermodynamic stability is probed by multiphoton ionization/fragmentation, which induces primarily Al and Mn loss. The resulting spectra are composed of a series of Pd-rich Al−Pd clusters. The average cluster composition is 60 (±1)% Pd. This composition is close to a known eutectic in the Al−Pd system. When manganese is seen on these clusters, it is always in units of Mn3. These results are discussed in terms of relative binding strengths in the Al−Pd−Mn alloy system