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Client Citation Analysis

A STUDY OF THE MATERIAL PROPERTIES OF SKI WAX AND FRICTION AT THE SKI-SNOW INTERFACE

This thesis presents quantitative, standardized test methods for ski wax and includes contact-angle measurements among the laboratory characterizations used to relate wax material properties to friction at the ski–snow interface.

At-a-Glance Summary

Primary surface measurement reported

Contact angle was measured as part of the study’s extensive laboratory characterization of ski wax material properties.

Dropometer attribution in the paper

Contact angle is listed among the laboratory characterization techniques used in the study.

How the surface-tension / contact-angle data were used in the study

Laboratory characterization (including contact angle) is used alongside field characterization to relate wax material properties to chemical composition and coefficients of friction at the ski–snow interface. In the abstract’s synthesis of results, overall performance is linked most strongly to wax hydrophobicity and chemical composition.

Paper Details

Title
A STUDY OF THE MATERIAL PROPERTIES OF SKI WAX AND FRICTION AT THE SKI-SNOW INTERFACE
Authors
Lorenz Marie Cushman
Pages / Article
Master of Science thesis
License
All Rights Reserved

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What Was Measured

Primary surface / interfacial measurement

Contact angle measurements are reported as part of the laboratory characterization toolkit applied to ski wax material properties.

Supporting measurements

The study reports laboratory characterization using FTIR, EDS, DSC, Shore D hardness, SEM, and rotational tribology, and adds on-snow field characterization using a linear ski tribometer and a clip-on sensing array to measure coefficients of friction in skiing-relevant conditions.

Role of the Dropometer

Contact angle measurements are included in the laboratory characterization suite used to measure ski wax material properties and relate those properties to chemical composition and coefficients of friction at the ski–snow interface.

The thesis presents contact-angle results as comparative datasets across wax categories (including fluorinated, non-fluorinated, and bio-based) and across wax types and suggested temperature use, supporting the study’s broader interpretation of performance-relevant wax properties.

Method Snapshot

Method Snapshot Table

Study series / sample set Surface measurement outputs Other reported measurements Instruments / tools (as named) Conditions / environment (as described) Notes
Laboratory characterization of ski wax material properties Contact angle FTIR; EDS; DSC; Shore D hardness; SEM; rotational tribology FTIR; EDS; DSC; contact angle; Shore D hardness; SEM; rotational tribology Laboratory characterization described as controlling variables present in the field to measure inherent material properties Study relates measured properties to wax chemical composition and coefficients of friction
On-snow field characterization for friction-relevant performance Coefficient of friction characterization on snow Linear ski tribometer; clip-on sensing array Linear ski tribometer described as using real snow with representative speeds and loads; field characterization described as capturing variable speeds, loads, snow types, and environmental conditions Clip-on sensing array described as designed to measure friction coefficient on a real ski while skiing
Wax library used across lab + field testing Contact angle (reported as measured across “all waxes”) Reported across the study’s characterization program Table listing references an inventory of 91 waxes donated by the U.S. Ski Team for laboratory and field testing

Key Findings

Quantitative, standardized testing approach

The thesis presents quantitative, standardized test methods to measure ski wax material properties and relates those properties to wax chemical composition and coefficients of friction.

Contact angle included in the lab characterization suite

Extensive laboratory characterization is reported to include contact angle along with FTIR, EDS, DSC, Shore D hardness, SEM, and rotational tribology.

Field tools target skiing-relevant friction measurement

On-snow field characterization is reported using a linear ski tribometer (using real snow with representative speeds and loads) and a clip-on sensing array designed to measure friction coefficient on a real ski while skiing.

Lab and field measurements serve different roles

Laboratory characterization is described as controlling numerous variables present in the field to measure inherent material properties, while field characterization is described as measuring the effects of variable speeds, loads, snow types, and environmental conditions.

Performance dependence emphasized in the abstract

Based on laboratory and field results, the abstract states that overall performance seems most dependent on wax hydrophobicity and chemical composition and least on hardness and surface roughness.

Figures & Visuals

Figure 8 — Category-level comparison of contact angle

What it shows

Plots contact angle measurements of all waxes to visualize differences between fluorinated, non-fluorinated, and bio-based waxes.

Figure 9 — Contact angle mapped to wax type and intended use

What it shows

Shows contact angle measurements of all waxes differentiated by physical type and suggested temperature use.

Why It Matters

The thesis frames ski wax development as historically lacking a quantitative, scientific understanding of wax material properties and friction mechanisms at the ski–snow interface, limiting progress toward alternative high-performance materials following the ban on fluorinated ski wax.

Within that measurement framework, contact angle is included among the laboratory methods used to characterize wax material properties, and the abstract’s integrated interpretation highlights hydrophobicity and chemical composition as dominant contributors to overall performance when laboratory and field characterization results are analyzed together.

Practical Takeaways

Contact angle is part of the reported characterization toolkit

The thesis explicitly includes contact angle in its laboratory characterization suite for measuring ski wax material properties.

Use contact-angle datasets for wax family comparisons

The thesis presents contact-angle plots designed to compare fluorinated, non-fluorinated, and bio-based waxes, and to differentiate waxes by physical type and suggested temperature use.

Interpret surface wetting alongside chemistry and friction

The study’s stated goal is to relate measured material properties (including contact angle) to wax chemical composition and coefficients of friction at the ski–snow interface.

Combine lab measurements with skiing-relevant friction testing

The methodology pairs laboratory characterization with tribometry on real snow and field friction measurement using a clip-on sensing array to capture performance under variable conditions.

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