Design of a compact and versatile radiation heater with an additively manufactured Nb radiation shield for UHV high-temperature sample preparation

AbstractPolyhedral Oligomeric Silsequioxane molecules have been incorporated into a commercial polyurethane formulation to produce nanocomposite polyurethane foam. This tiny POSS silica molecule has been used successfully to enhance the performance of polymer systems using co-polymerization and blend strategies. In our investigation, we chose a high-temperature MDI Polyurethane resin foam currently used in military development projects. For the nanofiller, or “blend”, Cp7T7(OH)3 POSS was chosen. Structural characterization was accomplished by TEM and SEM to determine POSS dispersion and cell morphology, respectively. Thermal behavior was investigated by TGA. Two methods of TEM sample preparation were employed, Focused Ion Beam and Ultramicrotomy (room temperature).

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Sample Preparation of Aluminum Bridge Test Vehicles for Tem In-Situ Crystallographic Studies of Electromigration

MRS Proceedings ◽

10.1557/proc-115-173 ◽

1987 ◽

Vol 115 ◽

Author(s):

W. E. Rhoden ◽

J. V. Maskowitz ◽

D. R. Kitchen ◽

R. E. Omlor ◽

P. F. Lloyd

Keyword(s):

High Temperature ◽

Sample Preparation ◽

Integrated Circuit ◽

Circuit Reliability ◽

Test Vehicle ◽

Aluminum Films ◽

Current Densities ◽

Integrated Circuit Reliability ◽

A Current

IntroductionElectromigration in aluminum films has been identified as an increasing concern for integrated circuit reliability. Electromigration is the mass transport of atoms in a conductor under a current stress. Electromigration occurs in conductors experiencing current densities greater than 105 A/cm2 and is accelerated by high temperature. The damage to aluminum films manifests itself in the formation of voids, hillocks and whiskers along the conductor. This paper presents a test vehicle preparation procedure which can be used to investigate electromigration.

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High temperature sample furnace for the Cary 14 R spectrophotometer

Journal of Physics E Scientific Instruments ◽

10.1088/0022-3735/1/6/438 ◽

1968 ◽

Vol 1 (6) ◽

pp. 683-684

Author(s):

C B Root

Keyword(s):

High Temperature ◽

Temperature Sample

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A Minor Change in Sample Preparation Leads to Unexpected Qualification Fails During High Temperature Storage Stress Test

ISTFA 2020: Papers Accepted for the Planned 46th International Symposium for Testing and Failure Analysis ◽

10.31399/asm.cp.istfa2020p0274 ◽

2020 ◽

Author(s):

Klaus Peter Tschernay ◽

Thomas Haber

Keyword(s):

High Temperature ◽

Sample Preparation ◽

Supply Chains ◽

Division Of Labor ◽

Failure Modes ◽

Stress Test ◽

High Temperature Storage ◽

A Minor ◽

Temperature Storage

Abstract In today’s supply chains based on complex division of labor qualification plans must be executed at various levels of semifinished products. This study shows how a supporting process, assumed to be uncritical in terms of the qualification scope for a bare silicon die, is responsible for qualification fails. Although such failures are not relevant for the quality of the final product careful and thorough analysis is required to invalidate such failure modes.

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High‐Temperature Sample Cell for the Kratky Small‐Angle X‐Ray Camera

Review of Scientific Instruments ◽

10.1063/1.1720606 ◽

1967 ◽

Vol 38 (11) ◽

pp. 1579-1580 ◽

Cited By ~ 7

Author(s):

H. Brumberger ◽

N. G. Alexandropoulos

Keyword(s):

High Temperature ◽

Small Angle ◽

Sample Cell ◽

X Ray ◽

Temperature Sample

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Effects of sample preparation on concentrations of cyclosporin A measured in plasma.

Clinical Chemistry ◽

10.1093/clinchem/30.11.1812 ◽

1984 ◽

Vol 30 (11) ◽

pp. 1812-1814 ◽

Cited By ~ 13

Author(s):

R W Yatscoff ◽

D N Rush ◽

J R Jeffery

Keyword(s):

Sample Preparation ◽

Cyclosporin A ◽

Whole Blood ◽

Room Temperature ◽

Analytical Recovery ◽

Distribution In Blood ◽

Temperature Sample

Abstract Because cyclosporin A rapidly changes its distribution in blood with changes in temperature, sample preparation affects results for it as measured in plasma. If whole blood is stored at either 4 degrees C or room temperature, results for cyclosporin A in the plasma are lower than in whole blood stored at 37 degrees C and centrifuged at this temperature. Re-equilibration of the former to 37 degrees C before cells are removed increases the analytical recovery of cyclosporin A in plasma; the optimal equilibration interval is 30 min. Use of such re-equilibration, followed by immediate centrifugation at room temperature, increases values obtained for cyclosporin in plasma by 60 to 65% over those determined after non-temperature-standardized collection procedures, but does not significantly improve the correlation between values for plasma and whole blood. Hematocrit and concentrations of cyclosporin A in plasma are inversely related. Correction for hematocrit improves the correlation between results for plasma and whole blood.

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Automated Determination of Protein-Nitrogen in Cereals and Grains

Journal of AOAC INTERNATIONAL ◽

10.1093/jaoac/60.6.1238 ◽

1977 ◽

Vol 60 (6) ◽

pp. 1238-1242

Author(s):

Robert N Revesz ◽

Norman Aker

Keyword(s):

Thermal Conductivity ◽

High Temperature ◽

Organic Material ◽

Combustion Products ◽

Direct Reading ◽

Protein Nitrogen ◽

Operational Characteristics ◽

Temperature Sample ◽

Automated Determination

Abstract This paper presents the design, performance, and operational characteristics of a new direct reading instrument for determining nitrogen in cereal and grain. Precision, accuracy, range, speed, ease of operation, sensitivity, sample size, and flexibility of the instrument are presented. Results on various cereals and grains are presented and compared with those obtained by the Kjeldahl technique. The apparatus is the result of research for a rapid method for determining nitrogen in organic material. The instrument uses a combination of a unique high temperature sample oxidation, a sampling valve for separating combustion products, and thermal conductivity detection for the liberated nitrogen in a helium carrier gas.

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